[frontend + backend] added vulnerabilitties tab and 'has' relationship

[stefan1anuby]

Proposed changes

Added 'has' relationship between system and vulnerability:

Added 'Vulnerabilities' tab in the Knowledge sections of the Systems:

Related issues

• Support of "has" relationship between a System and a Vulnerability #8453
• Add "Vulnerabilities" view in the knowledge tab of a System entity #8498

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.05%. Comparing base (ea43d66) to head (f2bfcff).
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #8458   +/-   ##
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  Coverage   66.04%   66.05%           
=======================================
  Files         597      597           
  Lines       60868    60871    +3     
  Branches     6202     6202           
=======================================
+ Hits        40202    40208    +6     
+ Misses      20666    20663    -3     

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[SarahBocognano]

Just checked your PR. The relationship creation is working well via UI and API, but there is a little miss somewhere.
We want to be able to add the relationship in related entities too.

In SystemKnowledge.jsx, add the "has" relationshipTypes in the "related" route and it will work perfectly ! :)

[stefan1anuby]

Would it be even better if I would create a separate route in SystemKnowledge for vulnerabilities? That also means solving #8498.