Update Italian language (#15076)

Marlin/src/lcd/language/language_it.h

@@ -35,9 +35,9 @@
 #define MSG_YES                             _UxGT("SI")
 #define MSG_NO                              _UxGT("NO")
 #define MSG_BACK                            _UxGT("Indietro")
-#define MSG_MEDIA_INSERTED                  _UxGT("SD Card inserita")
-#define MSG_MEDIA_REMOVED                   _UxGT("SD Card rimossa")
-#define MSG_MEDIA_RELEASED                  _UxGT("SD Card rilasciata")
+#define MSG_MEDIA_INSERTED                  _UxGT("Media inserito")
+#define MSG_MEDIA_REMOVED                   _UxGT("Media rimosso")
+#define MSG_MEDIA_RELEASED                  _UxGT("Media rilasciato")
 #define MSG_LCD_ENDSTOPS                    _UxGT("Finecor.") // Max 8 caratteri
 #define MSG_LCD_SOFT_ENDSTOPS               _UxGT("Finecorsa Soft")
 #define MSG_MAIN                            _UxGT("Menu principale")
@@ -101,6 +101,7 @@
 #define MSG_USER_MENU                       _UxGT("Comandi personaliz.")
 #define MSG_LCD_TILTING_MESH                _UxGT("Punto inclinaz.")
 #define MSG_M48_TEST                        _UxGT("Test sonda M48")
+#define MSG_M48_POINT                       _UxGT("Punto M48")
 #define MSG_M48_DEVIATION                   _UxGT("Deviazione")
 #define MSG_IDEX_MENU                       _UxGT("Modo IDEX")
 #define MSG_OFFSETS_MENU                    _UxGT("Strumenti Offsets")