♿(frontend) add missing label and fix Axes errors to improve a11y

[Ovgodd]

Purpose

Fix several Axe accessibility issues (landmarks, button names, editor label, modals).

Proposal

• Move the footer on /home outside of <main> so contentinfo is a sibling landmark.
• Add aria-label/title to icon-only buttons (e.g. document emoji) so they have discernible text.
• In BlockNoteEditor, label the real editable node .ProseMirror.bn-edito and remove aria-labelfromBlockNoteView`. s a
• Fix close button that was'nt focusable in DocShareModal.tsx

[github-actions]

Size Change: +38 B (0%)

Total Size: 4.16 MB

Filename	Size	Change
apps/impress/out/_next/static/95e8b0df/_buildManifest.js	0 B	-889 B (removed)	🏆
apps/impress/out/_next/static/a52c738b/_buildManifest.js	889 B	+889 B (new file)	🆕

_{compressed-size-action}

[AntoLC]

The main is above the header, making it not fully clickable.

See:

20260108-1012-41.8298524.mp4

[Ovgodd]

nice catch I fixed it

[Ovgodd]

I also removed the negative margin that was necessary when the HomeHeader was inside the main container.

[AntoLC]

The header is not fixed anymore, plus the top content is not well centered neither.
Here a video comparing with https://impress-staging.beta.numerique.gouv.fr/home/ :

20260108-1455-09.0784360.mp4

WDYT to separate the home part in a other PR ?

[Ovgodd]

The header is not fixed anymore, plus the top content is not well centered neither. Here a video comparing with https://impress-staging.beta.numerique.gouv.fr/home/ :

20260108-1455-09.0784360.mp4
WDYT to separate the home part in a other PR ?

yes good idea, this part seems to be a bit tricky I will push a fixup with original HomeContent without changes

[AntoLC]

Should not be added.

[AntoLC]

This part is release, it should not be touch I think.

[AntoLC]

There is already a Changed part.