feat(usability): update functions for search (#774)

* feat(usability): update functions for search

Signed-off-by: Aaron <29749331+aarnphm@users.noreply.github.com>

* perf: slightly cleaner variables

Signed-off-by: Aaron <29749331+aarnphm@users.noreply.github.com>

---------

Signed-off-by: Aaron <29749331+aarnphm@users.noreply.github.com>

quartz/components/styles/search.scss

@@ -162,7 +162,8 @@
             }
 
             &:hover,
-            &:focus {
+            &:focus,
+            &.focus {
               background: var(--lightgray);
             }