[All] Code refactoring

- keys beep and haptic refactoring (not anymore audio events)
- trims move/mid/min/max refactoring (trim end splitted to trim min / trim max)
- S6R new alarms
- S6R servos/rx status displayed as a text (not an integer which has no sense)
- Timer countdown configuration
- The splash was not displayed (but the timeout was there) after the first calibration

radio/src/gui/9x/menu_model_telemetry.cpp

@@ -540,7 +540,7 @@ void menuModelTelemetry(uint8_t event)
           POPUP_MENU_ADD_ITEM(STR_EDIT);
           POPUP_MENU_ADD_ITEM(STR_COPY);
           POPUP_MENU_ADD_ITEM(STR_DELETE);
-          popupMenuHandler = onSensorMenu;
+          POPUP_MENU_START(onSensorMenu);
         }
         else if (event == EVT_KEY_BREAK(KEY_ENTER)) {
           pushMenu(menuModelSensor);