ProfileHoverCard: z-[100] no longer necessary

app/soapbox/components/profile-hover-card.tsx

@@ -97,7 +97,7 @@ export const ProfileHoverCard: React.FC<IProfileHoverCard> = ({ visible = true }
   return (
     <div
       className={classNames({
-        'absolute transition-opacity w-[320px] z-[100] top-0 left-0': true,
+        'absolute transition-opacity w-[320px] z-50 top-0 left-0': true,
         'opacity-100': visible,
         'opacity-0 pointer-events-none': !visible,
       })}