Merge 'bugfix-2.0.x' into 2.0.x

Marlin/Configuration.h

Marlin/Configuration_adv.h

Marlin/src/HAL/HAL_AVR/persistent_store_eeprom.cpp

Marlin/src/HAL/HAL_AVR/watchdog.cpp

Marlin/src/HAL/HAL_DUE/persistent_store_eeprom.cpp

Marlin/src/HAL/HAL_LPC1768/MarlinSerial.cpp

Marlin/src/HAL/HAL_LPC1768/inc/SanityCheck.h

Marlin/src/HAL/HAL_SAMD51/persistent_store_eeprom.cpp

Marlin/src/HAL/HAL_STM32/persistent_store_impl.cpp

Marlin/src/HAL/HAL_STM32F1/persistent_store_eeprom.cpp

Marlin/src/HAL/HAL_STM32_F4_F7/persistent_store_eeprom.cpp

Marlin/src/HAL/HAL_TEENSY31_32/persistent_store_impl.cpp

Marlin/src/HAL/HAL_TEENSY35_36/persistent_store_eeprom.cpp

Marlin/src/MarlinCore.cpp

Marlin/src/core/language.h

Marlin/src/core/serial.cpp

Marlin/src/feature/bltouch.cpp

Marlin/src/feature/bltouch.h

Marlin/src/feature/pause.cpp

Marlin/src/feature/power_loss_recovery.cpp