Update app to be formally compatible with NC 31

[christianlupus]

Topic and Scope

This just marks the app as compatible with NC 31

Concerns/issues

No RC yet published.

Formal requirements

There are some formal requirements that should be satisfied. Please mark those by checking the corresponding box.

• I did check that the app can still be opened and does not throw any browser logs
• I created tests for newly added PHP code (check this if no PHP changes were made)
• I updated the OpenAPI specs and added an entry to the API changelog (check if API was not modified)
• I notified the matrix channel if I introduced an API change

[github-actions]

Test Results

   12 files    584 suites   1m 37s ⏱️
  575 tests   575 ✅ 0 💤 0 ❌
2 300 runs  2 299 ✅ 1 💤 0 ❌

Results for commit 7685e6f.

♻️ This comment has been updated with latest results.

[christianlupus]

/approve

[nextcloud-cookbook-bot]

Automatically approved by GitHub action on behalf of /approve