Add /switch (a static page for testing)

Author: AaDalal

src/routes/switch/+page.svelte

@@ -0,0 +1,13 @@
+<script lang="ts">
+	const isOn = true;
+</script>
+
+<svelte:head>
+	<title>switch | aagam's blog</title>
+</svelte:head>
+
+<main class="flex items-center align-center">
+	<p class="text-2xl">
+	the switch is <span class="font-bold italic">{isOn ? 'alive' : 'dead'}</span>
+	</p>
+</main>