LED menu item bool (like Case Lights)

Marlin/src/lcd/language/language_cz.h

 #define MSG_UBL_STEP_BY_STEP_MENU           _UxGT("UBL Postupně")
 
 #define MSG_LED_CONTROL                     _UxGT("LED Nastavení")
-#define MSG_LEDS_ON                         _UxGT("Světla Zap")
-#define MSG_LEDS_OFF                        _UxGT("Světla Vyp")
+#define MSG_LEDS                            _UxGT("Světla")
 #define MSG_LED_PRESETS                     _UxGT("Světla Předvolby")
 #define MSG_SET_LEDS_RED                    _UxGT("Červená")
 #define MSG_SET_LEDS_ORANGE                 _UxGT("Oranžová")

Marlin/src/lcd/language/language_de.h

 #define MSG_UBL_STEP_BY_STEP_MENU         _UxGT("Schrittweises UBL")
 
 #define MSG_LED_CONTROL                     _UxGT("LED Kontrolle")
-#define MSG_LEDS_ON                         _UxGT("Licht an")
-#define MSG_LEDS_OFF                        _UxGT("Licht aus")
+#define MSG_LEDS                            _UxGT("Licht")
 #define MSG_LED_PRESETS                     _UxGT("Licht Einstellungen")
 #define MSG_SET_LEDS_RED                    _UxGT("Rot")
 #define MSG_SET_LEDS_ORANGE                 _UxGT("Orange")

Marlin/src/lcd/language/language_en.h

 #ifndef MSG_LED_CONTROL
   #define MSG_LED_CONTROL                     _UxGT("LED Control")
 #endif
-#ifndef MSG_LEDS_ON
-  #define MSG_LEDS_ON                         _UxGT("Lights On")
-#endif
-#ifndef MSG_LEDS_OFF
-  #define MSG_LEDS_OFF                        _UxGT("Lights Off")
+#ifndef MSG_LEDS   
+  #define MSG_LEDS                            _UxGT("Lights")
 #endif
 #ifndef MSG_LED_PRESETS
   #define MSG_LED_PRESETS                     _UxGT("Light Presets")

Marlin/src/lcd/language/language_eu.h

 //#define MSG_UBL_Z_OFFSET_STOPPED          _UxGT("Z-Offset Stopped")
 //#define MSG_UBL_STEP_BY_STEP_MENU         _UxGT("Step-By-Step UBL")
 #define MSG_LED_CONTROL                     _UxGT("LED ezarpenak")
-#define MSG_LEDS_ON                         _UxGT("Argiak piztu")
-#define MSG_LEDS_OFF                        _UxGT("Argiak itzali")
+#define MSG_LEDS                            _UxGT("Argiak")
 #define MSG_LED_PRESETS                     _UxGT("Argi aurrehautaketak")
 #define MSG_SET_LEDS_RED                    _UxGT("Gorria")
 #define MSG_SET_LEDS_ORANGE                 _UxGT("Laranja")

Marlin/src/lcd/language/language_fr.h

 #define MSG_UBL_STEP_BY_STEP_MENU           _UxGT("UBL Pas à pas")
 
 #define MSG_LED_CONTROL                     _UxGT("Contrôle LED")
-#define MSG_LEDS_ON                         _UxGT("Lumière ON")
-#define MSG_LEDS_OFF                        _UxGT("Lumière OFF")
+#define MSG_LEDS                            _UxGT("Lumière")
 #define MSG_LED_PRESETS                     _UxGT("Préregl. LED")
 #define MSG_SET_LEDS_RED                    _UxGT("Rouge")
 #define MSG_SET_LEDS_ORANGE                 _UxGT("Orange")

Marlin/src/lcd/language/language_it.h

 #define MSG_UBL_STEP_BY_STEP_MENU           _UxGT("UBL passo passo")
 
 #define MSG_LED_CONTROL                     _UxGT("Controllo LED")
-#define MSG_LEDS_ON                         _UxGT("Luci On")
-#define MSG_LEDS_OFF                        _UxGT("Luci Off")
+#define MSG_LEDS                            _UxGT("Luci")
 #define MSG_LED_PRESETS                     _UxGT("Preset luci")
 #define MSG_SET_LEDS_RED                    _UxGT("Rosso")
 #define MSG_SET_LEDS_ORANGE                 _UxGT("Arancione")

Marlin/src/lcd/language/language_pt-br.h

 #define MSG_UBL_Z_OFFSET_STOPPED            _UxGT("Compensação Z parou")
 #define MSG_UBL_STEP_BY_STEP_MENU           _UxGT("UBL passo a passo")
 #define MSG_LED_CONTROL                     _UxGT("Controle do LED")
-#define MSG_LEDS_ON                         _UxGT("Luz Acesa")
-#define MSG_LEDS_OFF                        _UxGT("Luz Apagada")
+#define MSG_LEDS                            _UxGT("Luz")
 #define MSG_LED_PRESETS                     _UxGT("Configuração da Luz")
 #define MSG_SET_LEDS_RED                    _UxGT("Luz Vermelha")
 #define MSG_SET_LEDS_ORANGE                 _UxGT("Luz Laranja")

Marlin/src/lcd/language/language_ru.h

 #define MSG_UBL_STEP_BY_STEP_MENU           _UxGT("Пошаговое UBL")
 
 #define MSG_LED_CONTROL                     _UxGT("Настройки LED")
-#define MSG_LEDS_ON                         _UxGT("Включить подсветку")
-#define MSG_LEDS_OFF                        _UxGT("Выключить подсветку")
+#define MSG_LEDS                            _UxGT("Подсветку")
 #define MSG_LED_PRESETS                     _UxGT("Предустановки света")
 #define MSG_SET_LEDS_RED                    _UxGT("Красный свет")
 #define MSG_SET_LEDS_ORANGE                 _UxGT("Оранжевый свет")

Marlin/src/lcd/language/language_sk.h

 #define MSG_UBL_STEP_BY_STEP_MENU           _UxGT("UBL Postupne")
 
 #define MSG_LED_CONTROL                     _UxGT("Nastavenie LED")
-#define MSG_LEDS_ON                         _UxGT("Zapnúť svetlo")
-#define MSG_LEDS_OFF                        _UxGT("Vypnúť svetlo")
+#define MSG_LEDS                            _UxGT("Svetlo")
 #define MSG_LED_PRESETS                     _UxGT("Prednastavené farby")
 #define MSG_SET_LEDS_RED                    _UxGT("Červená")
 #define MSG_SET_LEDS_ORANGE                 _UxGT("Oranžová")

Marlin/src/lcd/language/language_zh_CN.h

 #define MSG_UBL_STEP_BY_STEP_MENU           _UxGT("一步步UBL") // "Step-By-Step UBL"
 
 #define MSG_LED_CONTROL                     _UxGT("灯管控制") // "LED Control")
-#define MSG_LEDS_ON                         _UxGT("灯亮") // "Lights On")
-#define MSG_LEDS_OFF                        _UxGT("灯灭") // "Lights Off")
+#define MSG_LEDS                            _UxGT("灯") // "Lights")
 #define MSG_LED_PRESETS                     _UxGT("灯预置") // "Light Presets")
 #define MSG_SET_LEDS_RED                    _UxGT("红") // "Red")
 #define MSG_SET_LEDS_ORANGE                 _UxGT("橙") // "Orange")

Marlin/src/lcd/language/language_zh_TW.h

 #define MSG_UBL_STEP_BY_STEP_MENU           _UxGT("一步步UBL") // "Step-By-Step UBL"
 
 #define MSG_LED_CONTROL                     _UxGT("灯管控制") // "LED Control")
-#define MSG_LEDS_ON                         _UxGT("灯亮") // "Lights On")
-#define MSG_LEDS_OFF                        _UxGT("灯灭") // "Lights Off")
+#define MSG_LEDS                            _UxGT("灯") // "Lights")
 #define MSG_LED_PRESETS                     _UxGT("灯预置") // "Light Presets")
 #define MSG_SET_LEDS_RED                    _UxGT("红") // "Red")
 #define MSG_SET_LEDS_ORANGE                 _UxGT("橙") // "Orange")

Marlin/src/lcd/ultralcd.cpp

     void lcd_led_menu() {
       START_MENU();
       MENU_BACK(MSG_MAIN);
-      if (leds.lights_on)
-        MENU_ITEM(function, MSG_LEDS_OFF, leds.toggle);
-      else
-        MENU_ITEM(function, MSG_LEDS_ON, leds.toggle);
+      bool led_on = leds.lights_on;
+      MENU_ITEM_EDIT_CALLBACK(bool, MSG_LEDS, &led_on, leds.toggle);
       MENU_ITEM(function, MSG_SET_LEDS_DEFAULT, leds.set_default);
       #if ENABLED(LED_COLOR_PRESETS)
         MENU_ITEM(submenu, MSG_LED_PRESETS, lcd_led_presets_menu);