Adding line breaks to ultimate member multi-select display

Displaying the multi-select fields in a row made it very hard to read the areas that members covered.

I couldn’t change the display without editing the core files, because they weren’t wrapped in a span or anything – I removed the comma and added in some line breaks in the um-filters-fields section:

in ultimatemember/core/um-filters-fields.php line 455

 $value = implode("<br/><br/> ", $arr_options);