Show the initialize_activity RQ job after starting or retrying a process
Follow-up of backend#1854 (closed), requires backend!2460 (merged)
After starting or retrying a process, the frontend can now display the initialize_activity
RQ job, but only after refreshing the page because the frontend doesn't expect a job to need to be fetched. This updates the store actions so that starting or retrying a process refreshes the jobs list automatically.