Bootstrap version support for Activity Finder

In the Carnation theme we use bootstrap v 4.6 and for this case we have a special option Bootstrap version in settings form for Activity Finder v4 (/admin/openy/settings/activity-finder)

Rose and Lily themes are using Bootstrap v3, Carnation theme is on Bootstrap v4 And when we set it to 4 then the AF4 result page looks good for the tablet screen on Carnation