Test delay in search bar on webUI

[dpakach]

Description

#32936 added delay in the search box for calling ajax which is not merged yet.
Add acceptance test for the search delay on top of #32936.

Related Issue

• Fixes Delay start of search to avoid searching for single letters #31305 Added delay in search #32936

Motivation and Context

How Has This Been 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)
• Technical debt
• Tests

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:

Open tasks:

• Backport (if applicable set "backport-request" label and remove when the backport was done)

[codecov]

Codecov Report

Merging #33493 into master will decrease coverage by <.01%.
The diff coverage is 9.09%.

@@             Coverage Diff              @@
##             master   #33493      +/-   ##
============================================
- Coverage     64.07%   64.07%   -0.01%     
  Complexity    18315    18315              
============================================
  Files          1192     1192              
  Lines         69168    69171       +3     
  Branches       1277     1277              
============================================
+ Hits          44322    44323       +1     
- Misses        24474    24476       +2     
  Partials        372      372

Flag	Coverage Δ	Complexity Δ
#javascript	52.9% <9.09%> (-0.01%)	0 <0> (ø)
#phpunit	65.37% <ø> (ø)	18315 <ø> (ø)	⬇️

Impacted Files	Coverage Δ	Complexity Δ
core/search/js/search.js	34.7% <9.09%> (-0.02%)	0 <0> (ø)

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[dpakach]

This test is not very reliable.
While trying to measure the delay we get extra delay from the browser and test suite.
We can count ajax calls but we may encounter some other random ajax calls. So this is being closed.