[stable32] feat(files_versions): Auto-reload versions tab on file

[silverkszlo]

Summary

This PR adds automatic reloading of the versions sidebar tab when documents are saved, eliminating the need for manual refresh to see new versions. The feature listens to files:node:updated events.

Changes

• Subscribe to files:node:updated events in VersionTab.vue in files_versions
• Automatically reload versions list when the current file is saved
• Add 1-second delay before fetching to allow server time to create new version entry

Testing

Tested on stable32 with Collabora Online:

1. Open a document in Collabora
2. Open versions sidebar tab
3. Make changes and save (Ctrl+S)
4. Versions list automatically updates after ~1 second
5. New version appears without manual refresh

• Resolves: #5267

TODO

• ...

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)
• Labels added where applicable (ex: bug/enhancement, 3. to review, feature component)
• Milestone added for target branch/version (ex: 32.x for stable32)

[susnux]

For 32 and older this makes sense :)

[blizzz]

@silverkszlo for the failing unconventional commits, do not merged stable32 herein, but rebase on stable32 instead.

[silverkszlo]

I accidently rebased my local commits into oblivion, so made a new PR with the same changes here: #58268