Bump @nextcloud-vue to 3.5.1

[PVince81]

Brings in the updated Avatar component which now uses Popover.

Fixes issue with dropdown menu overlap with other avatars in the
messages list.

Fixes #4147

[nickvergessen]

• Regressions: Icons are not inverted any longer on dark mode
• Instead of scrolling the popover now just overlaps the avatar. I think elipsis would be better

[nickvergessen]

Regressions: Icons are not inverted any longer on dark mode

I guess this needs fixing in server, as https://github.com/nextcloud/server/blob/f04b182b9447231b32cd5b5f8060314dee4fd801/apps/accessibility/css/dark.scss#L63 no longer matches.

[PVince81]

Regressions: Icons are not inverted any longer on dark mode

Seems the difference with the other popover menus is that in the popover menus we use "icon-x" classes for icons, but for this actions menu it's image URLs directly.

[PVince81]

Regressions: Icons are not inverted any longer on dark mode

I guess this needs fixing in server, as https://github.com/nextcloud/server/blob/f04b182b9447231b32cd5b5f8060314dee4fd801/apps/accessibility/css/dark.scss#L63 no longer matches.

Dark mode fixes here:

• add classes for more specific targetting (not wanting to target images in a non-menu inside popover): Make the popover menu more easily addressable nextcloud-libraries/nextcloud-vue#1674
  • re-release nextcloud-vue patch version
  • update bumped version to 3.5.1
• server changes to dark.css to make it look better (screenshots included there): Dark mode adjustments for popover server#25229

[PVince81]

Instead of scrolling the popover now just overlaps the avatar. I think elipsis would be better

Ellipsis means we'd need a tooltip also to be able to display the full row as there might be words behind the name like "sprechen" in German.

I looked at the actions menu and apparently it wraps there with a fixed max width, so we could do the same here:

Eventually once we switch to actions menu for avatars (see nextcloud-libraries/nextcloud-vue#1670) this will be in place as well implicitly.

For now I'll manually adjust these to the avatar's popover menu.

[PVince81]

• long text fixes (screenshots included there): Fix longtext appearance for avatar popover menu nextcloud-libraries/nextcloud-vue#1675

[PVince81]

bumped to 3.5.1 now

[PVince81]

all merged, I've retested this PR and it works.

Changes have been made to fix the issue