Add horizontal padding to set info icon.

This adds some spacing between the set link and the info icon to
make it accessible on small touch screens to give enough space to
touch the icon without hitting the link instead.

Author: somiaj

templates/ContentGenerator/ProblemSets/set_list_row.html.ep

@@ -20,7 +20,7 @@
 				class => 'fw-bold'
 			=%>
 			% if ($set->description =~ /\S/) {
-				<a class="set-id-tooltip" role="button" tabindex="0" data-bs-placement="right"
+				<a class="set-id-tooltip px-1" role="button" tabindex="0" data-bs-placement="right"
 						data-bs-toggle="tooltip" data-bs-title="<%= $set->description =%>"
 						data-fallback-placements="top bottom">
 					<i class="icon fas fa-circle-info" aria-hidden="true"></i>