Polish quiz completion UX, room PNG backgrounds, and habits list order

Polish quiz completion UX, rooms, and app layout.

components/avatar/avatar-customize-layout.tsx

@@ -15,7 +15,7 @@ export function AvatarCustomizeLayout({
   children,
 }: AvatarCustomizeLayoutProps) {
   return (
-    <div className="relative min-h-dvh bg-background bg-[radial-gradient(circle_at_20%_0%,hsl(var(--primary)/0.12)_0%,transparent_45%),radial-gradient(circle_at_80%_100%,hsl(var(--secondary)/0.1)_0%,transparent_40%)] pt-topbar">
+    <div className="relative min-h-dvh bg-background pt-topbar">
       <AppTopBar />
 
       <main className="mx-auto max-w-lg px-4 py-6 lg:max-w-6xl lg:px-5">