Added static method to the task model that returns a sample task model

lib/src/widgets/task_list_tile.dart

@@ -8,8 +8,6 @@ class TaskListTile extends StatelessWidget {
   TaskListTile({@required this.task});
 
   Widget build(BuildContext context) {
-    String getTaskPriority() {}
-
     return FractionallySizedBox(
       widthFactor: .9,
       child: Container(
@@ -28,6 +26,9 @@ class TaskListTile extends StatelessWidget {
                     bottomRight: Radius.circular(14),
                   ),
                 ),
+                child: Center(
+                  child: Text(task.getPriorityText()),
+                ),
               ),
             )
           ],