update topbar with new styling

frontend/src/components/Topbar.tsx

@@ -58,13 +58,13 @@ const Topbar = ({
     }
 
     return (
-        <div className={clsx(className, "flex justify-between items-center px-4 py-2 bg-white border-b border-gray-200")}>
+        <div className={clsx(className, "flex justify-between items-center px-4 py-2 bg-sidebar border-b border-hairline")}>
             <MenuButton onClick={() => setSidebarToggled(!sidebarToggled)}>
                 {sidebarToggled ? <Menu size={24}/> :  <X size={24}/>}
             </MenuButton>
 
             { user ? (
-                <div>
+                <div className={"hover:bg-hover rounded-lg p-0.5"}>
                     <img
                         className={"w-8 h-8 rounded-full inline-block"}
                         src={user.profilePictureUrl}