Various fixes for MarlinUI and ExtUI (#12439)

Marlin/Makefile

Marlin/src/core/macros.h

Marlin/src/core/serial.cpp

Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp

Marlin/src/feature/pause.cpp

Marlin/src/gcode/bedlevel/G26.cpp

Marlin/src/gcode/calibrate/G33.cpp

Marlin/src/gcode/lcd/M0_M1.cpp

Marlin/src/gcode/lcd/M117.cpp

Marlin/src/gcode/sdcard/M20-M30_M32-M34_M524_M928.cpp

Marlin/src/gcode/stats/M31.cpp

Marlin/src/gcode/temperature/M140_M190.cpp

Marlin/src/lcd/dogm/status_screen_lite_ST7920.cpp

Marlin/src/lcd/dogm/status_screen_lite_ST7920.h

Marlin/src/lcd/extensible_ui/lib/example.cpp

Marlin/src/lcd/extensible_ui/ui_api.cpp

Marlin/src/lcd/extensible_ui/ui_api.h

Marlin/src/lcd/malyanlcd.cpp

Marlin/src/lcd/menu/menu_main.cpp

Marlin/src/lcd/ultralcd.cpp