revert dev server port back to 5000

Author: rmobis

taskapp.py

@@ -1068,4 +1068,4 @@ def change_official_status():
     if (isProd):
         app.run(host='0.0.0.0')
     else:
-        app.run(host="0.0.0.0", port=5001)
+        app.run(host="0.0.0.0", port=5000)