Approval in backend

backend/tr/todo.json

@@ -2,6 +2,9 @@
     "todo": {
         "tasks_assigned_to_me": "Tasks assigned to me",
         "tasks_created_by_me": "Tasks created by me",
-        "assignee": "Assignee"
+        "assignee": "Assignee",
+        "list_is_empty_thus_far": "The list is empty thus far. Add a new task to fill it.",
+        "warning_no_filter_means_current": "Without a time filter, only currently relevant tasks are listed.",
+        "time_filter_set_at_top": "You can filter by time at the top of the page."
     }
 }