Refactor wrong method name

lib/providers/tasks_provider.dart

@@ -19,7 +19,7 @@ class TasksProvider extends ChangeNotifier {
     initTasks();
   }
 
-  void setTaksDone(Pages taskName) {
+  void setTaskDone(Pages taskName) {
     tasks[taskName] = false;
     notifyListeners();
   }

lib/widgets/mood_form.dart

@@ -33,7 +33,7 @@ class MoodForm extends StatelessWidget {
         ),
         SubmitFormButton(
           submitCallback: inputModel.saveMood,
-          updateTasks: () => tasksModel.setTaksDone(Pages.mood),
+          updateTasks: () => tasksModel.setTaskDone(Pages.mood),
         )
       ],
     );

lib/widgets/relapse_form.dart

@@ -33,7 +33,7 @@ class RelapseForm extends StatelessWidget {
         ),
         SubmitFormButton(
           submitCallback: inputModel.saveRelapse,
-          updateTasks: () => tasksModel.setTaksDone(Pages.mood),
+          updateTasks: () => tasksModel.setTaskDone(Pages.mood),
         )
       ],
     );

lib/widgets/sleep_form.dart

@@ -47,7 +47,7 @@ class SleepForm extends StatelessWidget {
         ),
         SubmitFormButton(
           submitCallback: () => inputModel.saveSleep(wokeUpKey, sleptKey),
-          updateTasks: () => tasksModel.setTaksDone(Pages.mood),
+          updateTasks: () => tasksModel.setTaskDone(Pages.mood),
         )
       ],
     );