[+] Server deletion safety

Errors are correctly logged in firebase.
User can't break the website anymore.

Signed-off-by: Charles Le Maux <charles.le-maux@epitech.eu>

generic_executor.py

@@ -168,6 +168,7 @@ def server_stop(user: UserRecord, name: str) -> tuple[HTTPStatus, str or None]:
     user_id: str = user.uid
     if mc_manager.has_cooldown(user_id=user_id):
         return HTTPStatus.FORBIDDEN, f"Wait 30 seconds before stopping '{name}'."
+    mc_manager.set_cooldown(user_id=user_id)
     try:
         port = firebase_manager.get_server_port(user_id)
         if port is None: