[stable30] fix: add close button when open readonly files on mobile app

[backportbot]

Backport of PR #7624

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 51.75%. Comparing base (ab3616a) to head (0fb4bf3).
⚠️ Report is 11 commits behind head on stable30.

Additional details and impacted files

@@            Coverage Diff            @@
##           stable30    #7671   +/-   ##
=========================================
  Coverage     51.75%   51.75%           
=========================================
  Files           117      117           
  Lines          2821     2821           
  Branches        567      567           
=========================================
  Hits           1460     1460           
- Misses         1229     1231    +2     
+ Partials        132      130    -2     

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[luka-nextcloud]

@mejo- Do we still need to backport to stable30?

[mejo-]

@mejo- Do we still need to backport to stable30?

@luka-nextcloud good question. According to https://github.com/nextcloud/server/wiki/Maintenance-and-Release-Schedule, Nextcloud 30 support ends in 2025-09. So this weeks release of Nextcloud 30 will be the last one?