[FL-1489] IRDA: move to FileWorker (#594)

* [FL-1489] IRDA: move to FileWorker, fixes

* Use FileWorker
* Use file_select to select remotes
* Fix some crashes
* Add RAW parsing restrictions
* Remove excess scene (LearnDoneAfter)
* Move all file system logic to standalone object

applications/gui/modules/button_panel.c

@@ -137,6 +137,10 @@ void button_panel_clean(ButtonPanel* button_panel) {
                     *button_item = NULL;
                 }
             }
+            model->reserve_x = 0;
+            model->reserve_y = 0;
+            LabelList_clean(model->labels);
+            ButtonMatrix_clean(model->button_matrix);
             return true;
         });
 }