Make days_before and days_after configurable

panera_shifts_gcal_backend/__init__.py

@@ -17,8 +17,8 @@ def input_all_shifts_for_month():
     # get latest inputted date; only show shifts past that date
     calendar = init_calendar()
     today = datetime.date.today()
-    start = today - datetime.timedelta(days=5)
-    end = start + datetime.timedelta(days=30)
+    start = today - datetime.timedelta(days=config["behavior"]["days_before"])
+    end = start + datetime.timedelta(days=config["behavior"]["days_after"])
 
     start_dt = datetime.datetime.combine(
         start, datetime.time(0, 0, 0, 0), datetime.timezone.utc