The translation parity test fails on main again after the Jalali
calendar landed: the two newest locales, he and sk, were missed when
the twelve Jalali month names were added - they get the same Latin
transliterations every other non-Persian locale received.
fa in turn carried four keys that do not exist in en and are not
referenced anywhere in the code (the email_composer.text_direction
block and settings.templates.image_too_large) - removed, as the
suite's no-extra-keys check demands.
