Refactor routine_view_card.dart to adjust the size of the CircularProgressIndicator

Fix routine popup
Update wall_presence_sensor.dart to handle null selectedOperationName

lib/pages/routines/create_new_routines/create_new_routines.dart

@@ -161,12 +161,10 @@ class _CreateNewRoutinesDialogState extends State<CreateNewRoutinesDialog> {
                         crossAxisAlignment: CrossAxisAlignment.center,
                         children: [
                           Center(
-                            child: Center(
                             child: CircularProgressIndicator(
                               color: ColorsManager.primaryColor,
                             ),
                           ),
-                          ),
                         ],
                       ),
                     ),

lib/pages/routines/widgets/routine_dialogs/wall_sensor/wall_presence_sensor.dart

@@ -170,7 +170,7 @@ class _WallPresenceSensorState extends State<WallPresenceSensor> {
       orElse: () => DeviceFunctionData(
         entityId: '',
         functionCode: selectedFunction,
-        operationName: state.selectedOperationName!,
+        operationName: state.selectedOperationName ?? '',
         value: null,
       ),
     );