Got rid of fallthrough warnings

watch-faces/complication/fast_stopwatch_face.c

@@ -326,7 +326,7 @@ bool fast_stopwatch_face_loop(movement_event_t event, void *context) {
         case EVENT_LIGHT_BUTTON_DOWN:
         case EVENT_LIGHT_LONG_PRESS:
             _button_beep();
-            // Fall into the case below;
+            // fall through
         case EVENT_TICK:
             _draw_indicators(state, event, elapsed);
             _display_elapsed(state, elapsed);

watch-faces/io/chirpy_demo_face.c

@@ -261,6 +261,7 @@ bool chirpy_demo_face_loop(movement_event_t event, void *context) {
             if (state->mode != CDM_CHIRPING) {
                 movement_move_to_face(0);
             }
+            // fall through
         default:
             movement_default_loop_handler(event);
             break;