feat: Implement a new _auth layout with a dashboard map, refactor the login form, and add logout functionality.

src/routes/logout.tsx

@@ -1,5 +1,9 @@
 import { createFileRoute } from "@tanstack/react-router"
+import { user } from "@/lib/server/user"
 
 export const Route = createFileRoute("/logout")({
-	beforeLoad: async ({ context }) => {}
+	beforeLoad: async () => {
+		await user.logout()
+	},
+	preload: false
 })