[frontend] spacing on entity's form (#9567)

[ValentinBouzinFiligran]

Proposed changes

• spacing 20 between fields in entity's form

Related issues

• In create entity form (on the fly), spacing of the first field is not correct #9567

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 66.32%. Comparing base (e32b9ec) to head (bd1a481).
Report is 22 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9608      +/-   ##
==========================================
+ Coverage   65.22%   66.32%   +1.10%     
==========================================
  Files         630      630              
  Lines       60201    60553     +352     
  Branches     6741     7539     +798     
==========================================
+ Hits        39264    40160     +896     
+ Misses      20937    20393     -544     

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[JeremyCloarec]

It works for the Create an entity form, but there is an unwanted side effect: the margin top is also applied to the Creation form of the entity:
With the fix:

On testing:

[SarahBocognano]

Approved even if need to change the spacing on top of the form like Jeremy said