Task manager from client

[ntorquet]

Create an endpoint to stop celery tasks.
Create a progress bar to see celery task progression in the client (files page).
Create a button to stop a celery task in the client (files page).
Create chip status for each task in the client (files page).

[ntorquet]

Everything done but stop celery tasks doesn't work in the server.
Open a new issue for this feature.