Disable MAC spoofing for iPhone tethering

Closes #17820

See merge request tails/tails!95

Test suite: fix the "Tor Browser loads the Tails GitLab" step

Closes #17840

See merge request tails/tails!102

Test suite: make "Scenario: The Additional Software dpkg hook…" scenario more robust

See merge request tails/tails!93

refs #17840

wiki/src/news/version_4.9.ar.po: adding as wiki/src/news/version_4.9.de.po has added.
wiki/src/news/version_4.9.ca.po: adding as wiki/src/news/version_4.9.de.po has added.
wiki/src/news/version_4.9.id.po: adding as wiki/src/news/version_4.9.de.po has added.
wiki/src/news/version_4.9.pl.po: adding as wiki/src/news/version_4.9.de.po has added.
wiki/src/news/version_4.9.ru.po: adding as wiki/src/news/version_4.9.de.po has added.
wiki/src/news/version_4.9.sr_Latn.po: adding as wiki/src/news/version_4.9.de.po has added.
wiki/src/news/version_4.9.tr.po: adding as wiki/src/news/version_4.9.de.po has added.
wiki/src/news/version_4.9.zh.po: adding as wiki/src/news/version_4.9.de.po has added.
wiki/src/news/version_4.9.zh_TW.po: adding as wiki/src/news/version_4.9.de.po has added.
wiki/src/support/known_issues/graphics.ar.po: updating as wiki/src/support/known_issues/graphics.de.po has changed.
wiki/src/support/known_issues/graphics.ca.po: updating as wiki/src/support/known_issues/graphics.de.po has changed.
wiki/src/support/known_issues/graphics.id.po: updating as wiki/src/support/known_issues/graphics.de.po has changed.
wiki/src/support/known_issues/graphics.pl.po: updating as wiki/src/support/known_issues/graphics.de.po has changed.
wiki/src/support/known_issues/graphics.ru.po: updating as wiki/src/support/known_issues/graphics.de.po has changed.
wiki/src/support/known_issues/graphics.sr_Latn.po: updating as wiki/src/support/known_issues/graphics.de.po has changed.
wiki/src/support/known_issues/graphics.tr.po: updating as wiki/src/support/known_issues/graphics.de.po has changed.
wiki/src/support/known_issues/graphics.zh.po: updating as wiki/src/support/known_issues/graphics.de.po has changed.
wiki/src/support/known_issues/graphics.zh_TW.po: updating as wiki/src/support/known_issues/graphics.de.po has changed.

Conflicts:
	wiki/src/contribute/how/documentation/release_notes/template.mdwn

No commit message

And fix very old typo 'is' → 'if'!

wiki/src/install/inc/steps/create_persistence.inline.ar.po: updating as wiki/src/install/inc/steps/create_persistence.inline.de.po has changed.
wiki/src/install/inc/steps/create_persistence.inline.ca.po: updating as wiki/src/install/inc/steps/create_persistence.inline.de.po has changed.
wiki/src/install/inc/steps/create_persistence.inline.id.po: updating as wiki/src/install/inc/steps/create_persistence.inline.de.po has changed.
wiki/src/install/inc/steps/create_persistence.inline.pl.po: updating as wiki/src/install/inc/steps/create_persistence.inline.de.po has changed.
wiki/src/install/inc/steps/create_persistence.inline.ru.po: updating as wiki/src/install/inc/steps/create_persistence.inline.de.po has changed.
wiki/src/install/inc/steps/create_persistence.inline.sr_Latn.po: updating as wiki/src/install/inc/steps/create_persistence.inline.de.po has changed.
wiki/src/install/inc/steps/create_persistence.inline.tr.po: updating as wiki/src/install/inc/steps/create_persistence.inline.de.po has changed.
wiki/src/install/inc/steps/create_persistence.inline.zh.po: updating as wiki/src/install/inc/steps/create_persistence.inline.de.po has changed.
wiki/src/install/inc/steps/create_persistence.inline.zh_TW.po: updating as wiki/src/install/inc/steps/create_persistence.inline.de.po has changed.

We have no reference to a 'wi-fi' class in our CSS files.