[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/horus/view_main.cpp

@@ -144,7 +144,7 @@ bool menuMainView(evt_t event)
       POPUP_MENU_ADD_ITEM(STR_STATISTICS);
       POPUP_MENU_ADD_ITEM(STR_SETUP_SCREENS);
       POPUP_MENU_ADD_ITEM(STR_ABOUT_US);
-      popupMenuHandler = onMainViewMenu;
+      POPUP_MENU_START(onMainViewMenu);
       break;
 
     case EVT_KEY_LONG(KEY_MODEL):
@@ -179,7 +179,6 @@ bool menuMainView(evt_t event)
         gvarDisplayTimer = 0;
       }
 #endif
-      AUDIO_KEYPAD_UP();
       break;
   }