Refactor Projects Overview Query to Reduce Complexity

[elias-ba]

Description

This PR [adds/changes/fixes]... (A description of your work goes here.)

Closes #__

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AI Usage

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• Code generation (copilot but not intellisense)
• Learning or fact checking
• Strategy / design
• Optimisation / refactoring
• Translation / spellchecking / doc gen
• Other
• I have not used AI

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Pre-submission checklist

• I have performed a self-review of my code.
• I have implemented and tested all related authorization policies. (e.g., :owner, :admin, :editor, :viewer)
• I have updated the changelog.
• I have ticked a box in "AI usage" in this PR

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.84%. Comparing base (9bc7f45) to head (5978607).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2612   +/-   ##
=======================================
  Coverage   90.84%   90.84%           
=======================================
  Files         320      320           
  Lines       11218    11220    +2     
=======================================
+ Hits        10191    10193    +2     
  Misses       1027     1027           

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