[frontend] add widget PolarArea for relationships

[lndrtrbn]

Proposed changes

• Add the widget PolarArea as possible widget in dashboard for relationships

Related issues

• Wish from Jermain

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.65%. Comparing base (12d021d) to head (5cc726b).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6470   +/-   ##
=======================================
  Coverage   67.65%   67.65%           
=======================================
  Files         532      532           
  Lines       64997    64997           
  Branches     5434     5435    +1     
=======================================
  Hits        43975    43975           
  Misses      21022    21022           

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[SarahBocognano]

Just curious about that, can you explain to me what is the utility of it ? :)

[lndrtrbn]

It allows IDE like Intellij to be able to check the types of the parameters even if it is a JS file when you use this function in a TS file