Formalize DAC percent strings (#16176)

Marlin/src/lcd/language/language_ca.h

Marlin/src/lcd/language/language_cz.h

Marlin/src/lcd/language/language_da.h

Marlin/src/lcd/language/language_de.h

Marlin/src/lcd/language/language_en.h

Marlin/src/lcd/language/language_es.h

Marlin/src/lcd/language/language_eu.h

Marlin/src/lcd/language/language_fr.h

Marlin/src/lcd/language/language_it.h

Marlin/src/lcd/language/language_jp_kana.h

Marlin/src/lcd/language/language_nl.h

Marlin/src/lcd/language/language_pl.h

Marlin/src/lcd/language/language_ru.h

Marlin/src/lcd/language/language_sk.h

Marlin/src/lcd/language/language_tr.h

Marlin/src/lcd/language/language_uk.h

Marlin/src/lcd/language/language_vi.h

Marlin/src/lcd/language/language_zh_CN.h

Marlin/src/lcd/language/language_zh_TW.h

Marlin/src/lcd/menu/menu_advanced.cpp