fix(web): render sidebar on settings route

Settings page was rendering Outlet directly, omitting the Sidebar nav.
Adds a playwright e2e test asserting sidebar visibility on both
dashboard and settings routes.

packages/web/src/routes/__root.tsx

@@ -1,4 +1,4 @@
-import { createRootRoute, Outlet, redirect, useRouter } from "@tanstack/react-router";
+import { createRootRoute, Outlet, redirect } from "@tanstack/react-router";
 import { useEffect } from "react";
 import { Sidebar } from "@/components/layout/Sidebar";
 import { loadConfig } from "@/lib/config";
@@ -7,17 +7,10 @@ import { applyTheme, getStoredTheme } from "@/lib/theme";
 const SETTINGS_PATH = "/settings";
 
 function RootLayout() {
-	const router = useRouter();
-	const isSettings = router.state.location.pathname === SETTINGS_PATH;
-
 	useEffect(() => {
 		applyTheme(getStoredTheme());
 	}, []);
 
-	if (isSettings) {
-		return <Outlet />;
-	}
-
 	return (
 		<div
 			className="flex h-screen w-full overflow-hidden"