Adds almost complete use of ESP32-sveltekit template

app2/src/lib/components/Spinner.svelte

@@ -0,0 +1,8 @@
+<script lang="ts">
+	import Loader from '~icons/tabler/loader-2';
+</script>
+
+<div class="flex h-full w-full flex-col items-center justify-center p-6">
+	<Loader class="text-primary h-14 w-auto animate-spin stroke-2" />
+	<p class="text-xl">Loading...</p>
+</div>