fix: it should not create multiple query editor extension container

[ruanyl]

Description

This is a follow up of #8045. With this PR, it only creates the query extension container when the container not exists, this will avoid creating duplicate containers.

Issues Resolved

Screenshot

Testing the changes

Changelog

• skip

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

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[ruanyl]

@kavilla @joshuali925 Could you take a look at this PR? It fixed an issue introduced by #8045

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[codecov]

Codecov Report

Attention: Patch coverage is 85.71429% with 1 line in your changes missing coverage. Please review.

Project coverage is 60.58%. Comparing base (ecd33b0) to head (bc21f92).
Report is 69 commits behind head on main.

Files with missing lines	Patch %	Lines
...uery_editor_extensions/query_editor_extensions.tsx	85.71%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8085   +/-   ##
=======================================
  Coverage   60.58%   60.58%           
=======================================
  Files        3738     3738           
  Lines       88671    88675    +4     
  Branches    13784    13785    +1     
=======================================
+ Hits        53722    53727    +5     
+ Misses      31663    31662    -1     
  Partials     3286     3286           

Flag	Coverage Δ
Linux_1	28.76% <ø> (ø)
Linux_2	56.27% <ø> (ø)
Linux_3	37.52% <85.71%> (+<0.01%)	⬆️
Linux_4	29.60% <ø> (ø)
Windows_1	28.77% <ø> (ø)
Windows_2	56.22% <ø> (ø)
Windows_3	37.52% <85.71%> (+<0.01%)	⬆️
Windows_4	29.60% <ø> (ø)

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