Update layout to be a svelte monorepo with shadcn-svelte

Also: add the start of a.starrysky.fyi
diff --git a/apps/a/src/app.html b/apps/a/src/app.html
new file mode 100644
index 0000000..effe0d0
--- /dev/null
+++ b/apps/a/src/app.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8" />
+		<link rel="icon" href="%sveltekit.assets%/favicon.png" />
+		<meta name="viewport" content="width=device-width" />
+		%sveltekit.head%
+	</head>
+	<body data-sveltekit-preload-data="hover">
+		<div style="display: contents">%sveltekit.body%</div>
+	</body>
+</html>