🩹 Buttons Followup (#24935)

Followup to #24878

Marlin/src/lcd/buttons.h

   #define _BUTTON_PRESSED_UP false
 #endif
 #if BUTTON_EXISTS(DOWN)
-  #define _BUTTON_PRESSED_DWN _BUTTON_PRESSED(DOWN)
+  #define _BUTTON_PRESSED_DOWN _BUTTON_PRESSED(DOWN)
 #else
-  #define _BUTTON_PRESSED_DWN false
+  #define _BUTTON_PRESSED_DOWN false
 #endif
 #if BUTTON_EXISTS(LEFT)
-  #define _BUTTON_PRESSED_LFT _BUTTON_PRESSED(LEFT)
+  #define _BUTTON_PRESSED_LEFT _BUTTON_PRESSED(LEFT)
 #else
-  #define _BUTTON_PRESSED_LFT false
+  #define _BUTTON_PRESSED_LEFT false
 #endif
 #if BUTTON_EXISTS(RIGHT)
-  #define _BUTTON_PRESSED_RT _BUTTON_PRESSED(RIGHT)
+  #define _BUTTON_PRESSED_RIGHT _BUTTON_PRESSED(RIGHT)
 #else
-  #define _BUTTON_PRESSED_RT false
+  #define _BUTTON_PRESSED_RIGHT false
 #endif
 #if BUTTON_EXISTS(BACK)
   #define _BUTTON_PRESSED_BACK _BUTTON_PRESSED(BACK)