[stable3] feat(recent-search): allow ordering by nc:last_activity when capability is true

[backportbot]

Backport of #1547

Warning, This backport's changes differ from the original and might be incomplete ⚠️

Todo

• Review and resolve any conflicts
• Review and verify the backported changes
• Amend HEAD commit to remove the line stating to skip CI

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Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 90.25%. Comparing base (3a49189) to head (9162f25).
⚠️ Report is 2 commits behind head on stable3.

Files with missing lines	Patch %	Lines
lib/dav/davProperties.ts	66.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           stable3    #1554      +/-   ##
===========================================
- Coverage    90.38%   90.25%   -0.13%     
===========================================
  Files           23       23              
  Lines          655      657       +2     
  Branches       177      178       +1     
===========================================
+ Hits           592      593       +1     
  Misses          53       53              
- Partials        10       11       +1     

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