[Frontend][Backend] duplicate an exercise

[Christian-DONGMO]

Proposed changes

Related issues

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

Further comments

If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution you did and what alternatives you considered, etc...

[Dimfacion]

When testing I had 400 errors on duplicate exercises with the following message :
{ "code": 400, "message": "Validation Failed", "errors": { "children": { "exercise_name": { "errors": [ "This value should not be blank." ] } } } }

Duplicate on simulations works but the modal never closes on success.

Duplicate on Injects and Atomic Testing works as expected.

[RomuDeuxfois]

@Christian-DONGMO I still have some bugs

• Atomic Testing
  When I duplicate an atomic testing with a tag, this tag is not in the duplicate atomic testing

• Simulation ->
  When I create a simulation, I have a 5OO Internal Error
  Cannot invoke "io.openbas.database.raw.RawExercise.getInject_ids()" because "rawExercise" is null

• Scenario ->
  I have a new background color in the table, why ?
  
  Variables are not duplicated

[RomuDeuxfois]

@Christian-DONGMO I still have one bug

• Simulations Injects
  I create a simulation with a media pressure inject and a media pressure.
  
  
  When I duplicate this simulation and I update the media pressure by changing his name
  
  The media pressure in the Definition seems to be the one in the base scenario (the name is the old one AND we have the mention: Not used in the context)
  

[RomuDeuxfois]

@Christian-DONGMO
The media pressure is well duplicated now, but the documents that were attached are not linked.

All bugs have been addressed