Support for the translation of device class names

[bieniu]

Currently, device_class names of binary sensors cannot be translated from English into the native language. This results in wrong entries in Logbook.

Example for motion:
Lokalise ref key: ui::components::logbook::messages::cleared_device_class
original string: cleared (no {device_class} detected)
string in English: cleared (no motion detected)
string in Polish with English motion word: brak (nie wykryto motion)
correct string in Polish: brak (nie wykryto ruchu)

So we need support for translation of device class names to correctly translate Logbook strings.