Fix the project endpoints according to the open api standard

[rv0lt]

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2. Go through sections 1-5 below, fill them in and check all the boxes
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1. Description / Summary

Fix the project endpoints according to the OpenAPI standard

2. Jira task / GitHub issue

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3. Type of change

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• New feature
  • Breaking: Why / How? Add info here.
  • Non-breaking
• Database change: Remember the to include a new migration version, or explain here why it's not needed.
• Bug fix
• Security Alert fix
  • Package update
    • Major version update
• Documentation
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• Tests only

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.45%. Comparing base (dd770b3) to head (702a348).

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #1527      +/-   ##
==========================================
+ Coverage   92.42%   92.45%   +0.02%     
==========================================
  Files          29       29              
  Lines        4808     4827      +19     
==========================================
+ Hits         4444     4463      +19     
  Misses        364      364              

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