Fix several headings and link on upgrade page

See merge request tails/tails!635

Resolve "Expert install instructions instruct to install unavailable debian-keyring package"

See merge request tails/tails!633

wiki/src/doc/advanced_topics/wireless_devices.ar.po: updating as wiki/src/doc/advanced_topics/wireless_devices.de.po has changed.
wiki/src/doc/advanced_topics/wireless_devices.ca.po: updating as wiki/src/doc/advanced_topics/wireless_devices.de.po has changed.
wiki/src/doc/advanced_topics/wireless_devices.fa.po: updating as wiki/src/doc/advanced_topics/wireless_devices.de.po has changed.
wiki/src/doc/advanced_topics/wireless_devices.id.po: updating as wiki/src/doc/advanced_topics/wireless_devices.de.po has changed.
wiki/src/doc/advanced_topics/wireless_devices.pl.po: updating as wiki/src/doc/advanced_topics/wireless_devices.de.po has changed.
wiki/src/doc/advanced_topics/wireless_devices.sr_Latn.po: updating as wiki/src/doc/advanced_topics/wireless_devices.de.po has changed.
wiki/src/doc/advanced_topics/wireless_devices.tr.po: updating as wiki/src/doc/advanced_topics/wireless_devices.de.po has changed.
wiki/src/doc/advanced_topics/wireless_devices.zh.po: updating as wiki/src/doc/advanced_topics/wireless_devices.de.po has changed.
wiki/src/doc/advanced_topics/wireless_devices.zh_TW.po: updating as wiki/src/doc/advanced_topics/wireless_devices.de.po has changed.
wiki/src/doc/anonymous_internet/no-wifi.inline.ar.po: updating as wiki/src/doc/anonymous_internet/no-wifi.inline.de.po has changed.
wiki/src/doc/anonymous_internet/no-wifi.inline.ca.po: updating as wiki/src/doc/anonymous_internet/no-wifi.inline.de.po has changed.
wiki/src/doc/anonymous_internet/no-wifi.inline.fa.po: updating as wiki/src/doc/anonymous_internet/no-wifi.inline.de.po has changed.
wiki/src/doc/anonymous_internet/no-wifi.inline.id.po: updating as wiki/src/doc/anonymous_internet/no-wifi.inline.de.po has changed.
wiki/src/doc/anonymous_internet/no-wifi.inline.pl.po: updating as wiki/src/doc/anonymous_internet/no-wifi.inline.de.po has changed.
wiki/src/doc/anonymous_internet/no-wifi.inline.sr_Latn.po: updating as wiki/src/doc/anonymous_internet/no-wifi.inline.de.po has changed.
wiki/src/doc/anonymous_internet/no-wifi.inline.tr.po: updating as wiki/src/doc/anonymous_internet/no-wifi.inline.de.po has changed.
wiki/src/doc/anonymous_internet/no-wifi.inline.zh.po: updating as wiki/src/doc/anonymous_internet/no-wifi.inline.de.po has changed.
wiki/src/doc/anonymous_internet/no-wifi.inline.zh_TW.po: updating as wiki/src/doc/anonymous_internet/no-wifi.inline.de.po has changed.

Add "Connection failed" to examples of Wi-Fi interface not working

See merge request tails/tails!629

wiki/src/doc/anonymous_internet/unsafe_browser.ar.po: updating as wiki/src/doc/anonymous_internet/unsafe_browser.de.po has changed.
wiki/src/doc/anonymous_internet/unsafe_browser.ca.po: updating as wiki/src/doc/anonymous_internet/unsafe_browser.de.po has changed.
wiki/src/doc/anonymous_internet/unsafe_browser.fa.po: updating as wiki/src/doc/anonymous_internet/unsafe_browser.de.po has changed.
wiki/src/doc/anonymous_internet/unsafe_browser.id.po: updating as wiki/src/doc/anonymous_internet/unsafe_browser.de.po has changed.
wiki/src/doc/anonymous_internet/unsafe_browser.pl.po: updating as wiki/src/doc/anonymous_internet/unsafe_browser.de.po has changed.
wiki/src/doc/anonymous_internet/unsafe_browser.sr_Latn.po: updating as wiki/src/doc/anonymous_internet/unsafe_browser.de.po has changed.
wiki/src/doc/anonymous_internet/unsafe_browser.tr.po: updating as wiki/src/doc/anonymous_internet/unsafe_browser.de.po has changed.
wiki/src/doc/anonymous_internet/unsafe_browser.zh.po: updating as wiki/src/doc/anonymous_internet/unsafe_browser.de.po has changed.
wiki/src/doc/anonymous_internet/unsafe_browser.zh_TW.po: updating as wiki/src/doc/anonymous_internet/unsafe_browser.de.po has changed.

update Tor network configuration design doc

See merge request tails/tails!606

Removing this line when updating the docs vs TCA was forgotten.

Doc: Tips on how to move around Linux kernel upgrade

See merge request tails/tails!624

... and move around debian info pages

life shines when you can avoid boring tasks

wiki/src/doc/about/openpgp_keys.ar.po: updating as wiki/src/doc/about/openpgp_keys.de.po has changed.
wiki/src/doc/about/openpgp_keys.ca.po: updating as wiki/src/doc/about/openpgp_keys.de.po has changed.
wiki/src/doc/about/openpgp_keys.fa.po: updating as wiki/src/doc/about/openpgp_keys.de.po has changed.
wiki/src/doc/about/openpgp_keys.id.po: updating as wiki/src/doc/about/openpgp_keys.de.po has changed.
wiki/src/doc/about/openpgp_keys.pl.po: updating as wiki/src/doc/about/openpgp_keys.de.po has changed.
wiki/src/doc/about/openpgp_keys.sr_Latn.po: updating as wiki/src/doc/about/openpgp_keys.de.po has changed.
wiki/src/doc/about/openpgp_keys.tr.po: updating as wiki/src/doc/about/openpgp_keys.de.po has changed.
wiki/src/doc/about/openpgp_keys.zh.po: updating as wiki/src/doc/about/openpgp_keys.de.po has changed.
wiki/src/doc/about/openpgp_keys.zh_TW.po: updating as wiki/src/doc/about/openpgp_keys.de.po has changed.

Update our signing key, 2021 edition

See merge request tails/tails!627

Currently translated at 40.0% (2 of 5 strings)

Translation: Tails/wiki/src/support/talk/no_reply_every_request.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcsupporttalkno_reply_every_requestinlinepo/it/

Currently translated at 42.8% (3 of 7 strings)

Translation: Tails/wiki/src/doc/sensitive_documents/metadata.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcdocsensitive_documentsmetadatainlinepo/it/

Currently translated at 33.3% (1 of 3 strings)

Translation: Tails/wiki/src/misc/newsletter.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcmiscnewsletterpo/it/

Currently translated at 100.0% (5 of 5 strings)

Translation: Tails/wiki/src/donate/canceled/others.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcdonatecanceledothersinlinepo/it/

Currently translated at 15.3% (4 of 26 strings)

Translation: Tails/wiki/src/doc/first_steps/persistence/rescue.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcdocfirst_stepspersistencerescuepo/it/

Currently translated at 93.7% (15 of 16 strings)

Translation: Tails/wiki/src/install/inc/steps/windows_boot_menu.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcinstallincstepswindows_boot_menuinlinepo/it/

Currently translated at 75.0% (6 of 8 strings)

Translation: Tails/wiki/src/doc/first_steps/start/not_entirely.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcdocfirst_stepsstartnot_entirelyinlinepo/it/

Currently translated at 38.3% (23 of 60 strings)

Translation: Tails/wiki/src/news/version_4.8.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcnewsversion_48po/it/

Currently translated at 100.0% (13 of 13 strings)

Translation: Tails/wiki/src/doc/anonymous_internet/unsafe_browser/security_implications.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcdocanonymous_internetunsafe_browsersecurity_implicationsinlinepo/it/

Currently translated at 66.6% (6 of 9 strings)

Translation: Tails/wiki/src/doc/anonymous_internet/unsafe_browser/logging_in.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcdocanonymous_internetunsafe_browserlogging_ininlinepo/it/

Currently translated at 14.2% (1 of 7 strings)

Translation: Tails/wiki/src/support/known_issues/import_broken_in_seahorse.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcsupportknown_issuesimport_broken_in_seahorseinlinepo/it/

Currently translated at 87.5% (7 of 8 strings)

Translation: Tails/wiki/src/news/version_4.4/javascript_sometimes_enabled_in_safest.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcnewsversion_44javascript_sometimes_enabled_in_safestinlinepo/it/

Currently translated at 90.0% (9 of 10 strings)

Translation: Tails/wiki/src/install/inc/steps/install_etcher_in_windows.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcinstallincstepsinstall_etcher_in_windowsinlinepo/it/

Currently translated at 44.4% (4 of 9 strings)

Translation: Tails/wiki/src/doc/upgrade/repair.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcdocupgraderepairinlinepo/it/

Currently translated at 100.0% (6 of 6 strings)

Translation: Tails/wiki/src/doc/anonymous_internet/unsafe_browser/captive_portal.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcdocanonymous_internetunsafe_browsercaptive_portalinlinepo/it/

Currently translated at 100.0% (6 of 6 strings)

Translation: Tails/wiki/src/doc/anonymous_internet/unsafe_browser/captive_portal.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcdocanonymous_internetunsafe_browsercaptive_portalinlinepo/it/