change COOL alarm to COOL END

[scottjames]

fixes #1970

[AppVeyorBot]

❌ Build artisan a2fb066 (1664) failed (commit a2fb0662cb by @scottjames)

[MAKOMO]

Thanks! Note that this only works as there are already translations for COOL ENDin the category ComboBox. Otherwise one would need to update/add translations for the new term for all supported 20+ languages.