style: fix keyboard focus visibility for toolbar accessibility

Author: DhyaniKavya

css/activities.css

@@ -14,10 +14,15 @@
 
 @import url("play-only-mode.css");
 
-*:focus {
+*:focus:not(:focus-visible) {
   outline: none;
 }
 
+*:focus-visible {
+  outline: 2px solid #0066FF !important;
+  outline-offset: 2px;
+}
+
 body:not(.dark) #helpfulSearch,
 body:not(.dark) .ui-autocomplete {
   background-color: #fff !important;