[frontend] Align knowledge bar counters (#8115)

[delemaf]

Proposed changes

• Fix distribution counters, also add counter for related entities
• Refactor query with fragment for knowledge bar
• NB: counters update is still not sync when entity is added (it's another bug 🐛 )

Related issues

• Close Incorrect display in Threat Actors menu category
• Close In an Incident, the Observables count on Knowledge is one below the actual count

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case (coverage and e2e)
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

Further comments

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.26%. Comparing base (790ad21) to head (d95bb0e).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #9304   +/-   ##
=======================================
  Coverage   65.26%   65.26%           
=======================================
  Files         630      630           
  Lines       60314    60314           
  Branches     6774     6777    +3     
=======================================
  Hits        39361    39361           
  Misses      20953    20953           

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[marieflorescontact]

locally tested ok 👌
just a question: do we decide to move the counter from the Observables side to the Related entities side?

[Archidoit]

If I am in a threat actor group and add 2 relationships with other threat actor groups, their are 2 relationships in the list, but the right counter indicates 3 :

[Archidoit]

Relationships of tyep 'part of' are displayed when I am in the 'related to' section :