Move tca developer doc to more appropriate places

Closes #18360

See merge request tails/tails!636

APT sources: add Bullseye security (stable)

Closes #18492

See merge request tails/tails!637

Update tails-sysadmins@ OpenPGP key

See merge request tails/tails!638

Upgrade to Tor Browser based on Firefox 91 ESR

Closes #18261

See merge request tails/tails!639

Improve time zone selection UX

Closes #18514

See merge request tails/tails!595

wiki/src/doc/upgrade.ar.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.ca.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.fa.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.id.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.pl.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.sr_Latn.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.tr.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.zh.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.zh_TW.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/install/expert/usb.ar.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.ca.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.fa.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.id.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.pl.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.sr_Latn.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.tr.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.zh.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.zh_TW.po: updating as wiki/src/install/expert/usb.de.po has changed.

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.

This disables some more of the new non-user-initiated traffic generated
with Firefox 91.

refs #18261

This disables some of the new non-user-initiated traffic generated
with Firefox 91.

refs #18261

Oddly enough, out of four systems running this step, three sees a
Print *panel* but one still sees a *dialog*. The best current theory
why this can happen is: virtio GPU used in QEMU can differ ⇒ different
GTK abilities ⇒ different UI implementation.

refs #18261

refs tails/tails#18492

refs tails/tails#18492

It seems our Rubocop backlog has increased quite a bit since we stopped
running it on GitLab CI. And perhaps a newer Rubocop spots problems
that it used to miss.

In most cases, fixing this offense is not possible without
overflowing the maximum line length.

Thankfully, Tor Browser 11 now uses the same (nicer) font for Latin
text as other languages, when started in Chinese.

refs #18261

refs #18261

update Tor network configuration design doc

See merge request tails/tails!606

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