Rename references to require_password_to_approve to require_reauthentication_to_approve in UI & related fields

Previously we added #431346, this needs a follow-up to rename the used fields in the UI & related code (presenters, window.gon, data object in templates) to use the new version (new: require_reauthentication_to_approve, old: require_password_to_approve) of this setting. After the migration mentioned in #431346 has been executed both fields old and new should all be in sync.