[frontend/backend] Ability to add indicator generated from the observables of a container in the container (#6171)

[ValentinBouzinFiligran]

Proposed changes

• checkbox added to add the created entity to the container
• containerId passed to the background task
• if the containerId is present, the created entity will be add to the container
• promoteObservableToIndicator now return the created indicator
• on observable page, when we generate or delete an inficator, we update the relay store directly

Related issues

• https://github.com/OpenCTI-Platform/opencti/issues/6171

Checklist

• [x] I consider the submitted work as finished
• [x] 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