Hi David,
Yes, since the No Results Card uses a standard component, you’ll have to override that before you can change the translations.
You can follow Rose’s instructions in this Community post to customize the text of the No Results banner.
You’ll notice in Sherman’s reply that he was having trouble getting this to work on a German site. It looks like that has been resolved on our end and translations should now be built into the alternativeverticals.hbs file that you’ll use with your translation file. For example, here is a translation used in the German experience Sherman mentioned:
#: theme-components/vertical-full-page-map-alternative-verticals/alternativeverticals.hbs:3
msgid "<em class=\"yxt-AlternativeVerticals-noResultsInfo--emphasized\">No results found</em> in [[currentVerticalLabel]]."
msgstr "<em class=\"yxt-AlternativeVerticals-noResultsInfo--emphasized\">Keine Ergebnisse gefunden</em> in [[currentVerticalLabel]]."
Let us know if this works for you!