[stable8] chore(docs): Automated styling update from server

[nextcloud-command]

Auto-generated update of our locally cached css styling from

• https://nextcloud.github.io/server/apps/theming/css/default.css
• https://nextcloud.github.io/server/core/css/server.css
• https://nextcloud.github.io/server/core/css/apps.css
• https://nextcloud.github.io/server/dist/icons.css

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 46.84%. Comparing base (02536bf) to head (21e9836).
⚠️ Report is 6 commits behind head on stable8.

Additional details and impacted files

@@           Coverage Diff            @@
##           stable8    #8490   +/-   ##
========================================
  Coverage    46.84%   46.84%           
========================================
  Files          195      195           
  Lines         4921     4921           
  Branches      1268     1205   -63     
========================================
  Hits          2305     2305           
- Misses        2528     2530    +2     
+ Partials        88       86    -2     

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