Fix babystep edit label, allowing translation

Marlin/src/core/language.h

 #define MSG_ERR_COLD_EXTRUDE_STOP           " cold extrusion prevented"
 #define MSG_ERR_LONG_EXTRUDE_STOP           " too long extrusion prevented"
 #define MSG_TOO_COLD_FOR_M600               "M600 Hotend too cold to change filament"
-#define MSG_BABYSTEPPING_X                  "Babystepping X"
-#define MSG_BABYSTEPPING_Y                  "Babystepping Y"
-#define MSG_BABYSTEPPING_Z                  "Babystepping Z"
 #define MSG_SERIAL_ERROR_MENU_STRUCTURE     "Error in menu structure"
 
 #define MSG_ERR_EEPROM_WRITE                "Error writing to EEPROM!"

Marlin/src/lcd/ultralcd.cpp

     }
 
     #if ENABLED(BABYSTEP_XY)
-      void _lcd_babystep_x() { _lcd_babystep(X_AXIS, PSTR(MSG_BABYSTEPPING_X)); }
-      void _lcd_babystep_y() { _lcd_babystep(Y_AXIS, PSTR(MSG_BABYSTEPPING_Y)); }
+      void _lcd_babystep_x() { _lcd_babystep(X_AXIS, PSTR(MSG_BABYSTEP_X)); }
+      void _lcd_babystep_y() { _lcd_babystep(Y_AXIS, PSTR(MSG_BABYSTEP_Y)); }
       void lcd_babystep_x() { lcd_goto_screen(_lcd_babystep_x); babysteps_done = 0; defer_return_to_status = true; }
       void lcd_babystep_y() { lcd_goto_screen(_lcd_babystep_y); babysteps_done = 0; defer_return_to_status = true; }
     #endif
 
     #else // !BABYSTEP_ZPROBE_OFFSET
 
-      void _lcd_babystep_z() { _lcd_babystep(Z_AXIS, PSTR(MSG_BABYSTEPPING_Z)); }
+      void _lcd_babystep_z() { _lcd_babystep(Z_AXIS, PSTR(MSG_BABYSTEP_Z)); }
       void lcd_babystep_z() { lcd_goto_screen(_lcd_babystep_z); babysteps_done = 0; defer_return_to_status = true; }
 
     #endif // !BABYSTEP_ZPROBE_OFFSET