[Async search Discover] Poll for results when current request completes

[amsiglan]

Description

This PR refactors the polling logic for async search in Discover to poll for the query status once the current call resolves.
Currently we fire a polling request every 5 seconds irrespective of whether the previous status check call completed or not.
This will ensure we make fewer polling calls

Screenshot

N/A

Testing the changes

Tested using local setup

Changelog

• fix: Refactored polling logic to poll for results once current request completes

Check List

• All tests pass
  • yarn test:jest
  • yarn test:jest_integration
• New functionality includes testing.
• New functionality has been documented.
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff

[codecov]

Codecov Report

Attention: Patch coverage is 18.18182% with 9 lines in your changes missing coverage. Please review.

Project coverage is 60.96%. Comparing base (615d7d4) to head (15ebeef).
Report is 43 commits behind head on main.

Files with missing lines	Patch %	Lines
src/plugins/data/common/utils/helpers.ts	18.18%	9 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8555   +/-   ##
=======================================
  Coverage   60.95%   60.96%           
=======================================
  Files        3776     3776           
  Lines       89638    89651   +13     
  Branches    14045    14045           
=======================================
+ Hits        54639    54652   +13     
  Misses      31587    31587           
  Partials     3412     3412           

Flag	Coverage Δ
Linux_1	29.12% <18.18%> (+0.04%)	⬆️
Linux_2	56.28% <18.18%> (+<0.01%)	⬆️
Linux_3	37.79% <18.18%> (+0.04%)	⬆️
Linux_4	29.95% <18.18%> (+0.03%)	⬆️
Windows_1	29.14% <18.18%> (+0.04%)	⬆️
Windows_2	56.23% <18.18%> (+<0.01%)	⬆️
Windows_3	37.79% <18.18%> (+0.04%)	⬆️
Windows_4	29.95% <18.18%> (+0.03%)	⬆️

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