[stable8.0] fix: search should have a way to clear contents

[backportbot]

Backport of #4821

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

Todo

• Review and resolve any conflicts
• 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 0% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 9.70%. Comparing base (85b42a9) to head (3cabb26).
⚠️ Report is 10 commits behind head on stable8.0.

Files with missing lines	Patch %	Lines
src/components/ContactsList.vue	0.00%	7 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff               @@
##             stable8.0   #4824      +/-   ##
==============================================
- Coverage         9.70%   9.70%   -0.01%     
  Complexity         266     266              
==============================================
  Files              124     124              
  Lines             6336    6338       +2     
  Branches          1189    1191       +2     
==============================================
  Hits               615     615              
- Misses            5599    5601       +2     
  Partials           122     122              

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