qt

Doc: Add alternate text for Qt WebChannel images


Alternate text (alt text) improves the documentation experience for
screen readers and for other accessibility tools. Also enable
reportmissingalttextforimages to enforce alt text on future images.

Task-number: QTBUG-135098
Pick-to: 6.11 6.12
Change-Id: Ib1860754b67976a67afb8caa86436827546d1676
Reviewed-by: Kai Köhne <kai.koehne@qt.io>
commit054cd587076b5e376de54ce45c062dcfaafc8ab6
parenta33ce83a79b02ea2eea997e2e355a3dccbf6c683
authorJerome Pasion <jerome.pasion@qt.io>
committerJerome Pasion <jerome.pasion@qt.io>
commit timeThu, 18 Jun 2026 10:05:46 +0000