move job statuses to job_api_client

prevent code duplication and a good excuse to use set subtraction

app/main/views/jobs.py

@@ -67,12 +67,7 @@ def _set_status_filters(filter_args):
 def view_jobs(service_id):
     page = int(request.args.get('page', 1))
     # all but scheduled and cancelled
-    statuses_to_display = [
-        'pending',
-        'in progress',
-        'finished',
-        'sending limits exceeded',
-    ]
+    statuses_to_display = job_api_client.JOB_STATUSES - {'scheduled', 'cancelled'}
     jobs_response = job_api_client.get_jobs(service_id, statuses=statuses_to_display, page=page)
     jobs = [
         add_rate_to_job(job) for job in jobs_response['data']