improve: no script stuff

src/index.html

@@ -1,6 +1,7 @@
 <!doctype html>
-<html lang="en">
+<html lang="en" class="no-js">
   <head>
+    <script>document.documentElement.classList.remove('no-js');</script>
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <meta charset="utf-8" />
     <meta