Enable WATCH_TEMP_PERIOD by default

Marlin/Configuration_adv.h

Marlin/Marlin_main.cpp

Marlin/configurator/config/Configuration_adv.h

Marlin/example_configurations/Felix/Configuration_adv.h

Marlin/example_configurations/Hephestos/Configuration_adv.h

Marlin/example_configurations/K8200/Configuration_adv.h

Marlin/example_configurations/SCARA/Configuration_adv.h

Marlin/example_configurations/WITBOX/Configuration_adv.h

.../example_configurations/delta/generic/Configuration_adv.h

...mple_configurations/delta/kossel_mini/Configuration_adv.h

Marlin/example_configurations/makibox/Configuration_adv.h

.../example_configurations/tvrrug/Round2/Configuration_adv.h

Marlin/temperature.cpp

Marlin/temperature.h

Marlin/ultralcd.cpp