Avoid menu closure when filtering labels

[AllForNothing]

1. Fixes Cannot filter labels #19554

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Comprehensive Summary of your change

Issue being fixed

Fixes #(issue)

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[codecov]

Codecov Report

Merging #19561 (32fa28a) into main (30730c6) will increase coverage by 0.08%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #19561      +/-   ##
==========================================
+ Coverage   45.24%   45.33%   +0.08%     
==========================================
  Files         244      244              
  Lines       13323    13324       +1     
  Branches     2720     2720              
==========================================
+ Hits         6028     6040      +12     
+ Misses       6993     6984       -9     
+ Partials      302      300       -2     

Flag	Coverage Δ
unittests	45.33% <100.00%> (+0.08%)	⬆️

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Files	Coverage Δ
...ponents/label-selector/label-selector.component.ts	68.18% <100.00%> (+0.48%)	⬆️

... and 3 files with indirect coverage changes