Show "Pausing…" during pause

Marlin/src/lcd/language/language_en.h

   PROGMEM Language_Str MSG_BUTTON_DONE                     = _UxGT("Done");
   PROGMEM Language_Str MSG_BUTTON_BACK                     = _UxGT("Back");
   PROGMEM Language_Str MSG_BUTTON_PROCEED                  = _UxGT("Proceed");
+  PROGMEM Language_Str MSG_PAUSING                         = _UxGT("Pausing...");
   PROGMEM Language_Str MSG_PAUSE_PRINT                     = _UxGT("Pause Print");
   PROGMEM Language_Str MSG_RESUME_PRINT                    = _UxGT("Resume Print");
   PROGMEM Language_Str MSG_STOP_PRINT                      = _UxGT("Stop Print");

Marlin/src/lcd/ultralcd.cpp

 
   void MarlinUI::pause_print() {
     #if HAS_LCD_MENU
-      synchronize(GET_TEXT(MSG_PAUSE_PRINT));
+      synchronize(GET_TEXT(MSG_PAUSING));
     #endif
 
     #if ENABLED(HOST_PROMPT_SUPPORT)