Added Error Page Back

src/routes/+error.svelte

@@ -0,0 +1,39 @@
+<script>
+	import Layout from "./+layout.svelte";
+</script>
+
+<Layout>
+	<main class="not-found-page px-4">
+		<h1 class="text-5xl sm:text-4xl md:text-5xl lg:text-5xl">404</h1>
+		<h3
+			class="mt-6 text-5xl sm:text-6xl md:text-7xl lg:text-9xl font-bold tracking-wide title"
+		>
+			Page Not Found
+		</h3>
+		<p class="text-2xl sm:text-3xl md:text-4xl mt-12">
+			The page you are looking for does not exist.
+		</p>
+		<div class="mt-12 flex flex-col gap-4 items-center sm:flex-row sm:gap-6">
+			<a href="/" class="text-xl sm:text-2xl md:text-3xl hover:underline">
+				Go To Home
+			</a>
+		</div>
+	</main>
+
+	<style>
+		.not-found-page {
+			padding: 8rem 1rem;
+			display: flex;
+			flex-direction: column;
+			justify-content: center;
+			align-items: center;
+			min-height: 100vh;
+		}
+		.title {
+			color: #f56565;
+			text-shadow:
+				0 0 2px #f56565,
+				0 0 4px #f56565;
+		}
+	</style>
+</Layout>

svelte.config.js

@@ -9,7 +9,7 @@ const config = {
 		adapter: adapter({
 			pages: "build",
 			assets: "build",
-			fallback: null,
+			fallback: "404.html",
 			precompress: false,
 			strict: true,
 		}),