[backend/frontend] Allow test injects for no admin roles

[savacano28]

Proposed changes

Backend

• Remove profil Admin for the test actions
• Separate endpoints for testing considering a PLANNER profile

Frontend

• Update calls

Related issues

• Closes Non admin user can't test emails #2794

Testing

• Logger with a user non admin try to test an inject
• Logger with a user non admin but planner and try test an inject
• Logger with an admin profil and test

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
• For bug fix -> I implemented a test that covers the bug

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...