Add search API to capabilities

[jvillafanez]

Description

Add the search API to the server capabilities

Related Issue

#25373

Motivation and Context

How Has This Been Tested?

Manually tested

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[PVince81]

👍 great

[codecov]

Codecov Report

Merging #31943 into master will increase coverage by <.01%.
The diff coverage is 62.5%.

@@             Coverage Diff              @@
##             master   #31943      +/-   ##
============================================
+ Coverage     63.46%   63.46%   +<.01%     
- Complexity    18524    18526       +2     
============================================
  Files          1167     1167              
  Lines         69479    69481       +2     
  Branches       1264     1264              
============================================
+ Hits          44096    44099       +3     
+ Misses        25014    25013       -1     
  Partials        369      369

Flag	Coverage Δ	Complexity Δ
#javascript	52.58% <ø> (ø)	0 <ø> (ø)	⬇️
#phpunit	64.71% <62.5%> (ø)	18526 <1> (+2)	⬆️

Impacted Files	Coverage Δ	Complexity Δ
apps/dav/lib/Capabilities.php	0% <0%> (ø)	1 <0> (ø)	⬇️
...av/lib/Connector/Sabre/FilesSearchReportPlugin.php	96.92% <100%> (+0.14%)	15 <1> (+2)	⬆️
apps/files_sharing/lib/Notifier.php	100% <0%> (ø)	19% <0%> (ø)	⬇️
apps/federatedfilesharing/lib/Notifier.php	0% <0%> (ø)	11% <0%> (ø)	⬇️
...uthentication/Exceptions/AccountCheckException.php	100% <0%> (ø)	2% <0%> (ø)	⬇️
lib/private/User/Session.php	78.22% <0%> (+0.1%)	150% <0%> (ø)	⬇️
.../files_sharing/lib/Controllers/ShareController.php	53.52% <0%> (+0.21%)	54% <0%> (ø)	⬇️
apps/federatedfilesharing/appinfo/app.php	20.83% <0%> (+0.83%)	0% <0%> (ø)	⬇️

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[PVince81]

👍

[PVince81]

@jvillafanez please backport or cherry-pick on the stable10 backport of the search API

[jvillafanez]

#31946 already contains these commits.

[phil-davis]

Backport PR #31946 has been merged.