Updated all long style names to be more compact

• Updated:
- all long style names to be more compact

app/javascript/gabsocial/components/timeline_queue_button_header.js

@@ -79,16 +79,16 @@ class TimelineQueueButtonHeader extends React.PureComponent {
     const hasItems = count > 0
 
     const containerClasses = cx({
-      default: 1,
+      _: 1,
       pb5: 1,
       posSticky: !hidden,
       top120PX: !hidden,
-      alignItemsCenter: 1,
+      aiCenter: 1,
       z3: 1,
     })
 
     const innerContainerClasses = cx({
-      default: 1,
+      _: 1,
       displayNone: !hasItems,
       mtNeg26PX: 1,
     })