Update translation context of two strings

This commit slightly improves the i18n call by adding contexts which were previously erroneously placed within the comment.

This kind of change is normally not a great idea because it forces all translators to re-visit this string but in this case this is the wanted result:

There was previously an error in these calls which made the multiline comment explaining how to translate these strings not show up which lead to unfortunate translations. With this all fixed now, translators re-visiting this string as part of the their usual workflow and without being pinged explicitly e.g. in a mailing list seems like the least amount of disruption which causes these translation to be fixed.