feat: turn into a pwa

app/static/index.html

@@ -4,6 +4,9 @@
   <meta charset="UTF-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
   <title>Apoena Transcript</title>
+  <link rel="manifest" href="/manifest.json" />
+  <link rel="icon" href="/icon.svg" type="image/svg+xml" />
+  <meta name="theme-color" content="#7c6af7" />
   <style>
     *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
 
@@ -606,6 +609,10 @@ function toSRTTime(seconds) {
 }
 
 function pad(n, len = 2) { return String(Math.floor(n)).padStart(len, '0'); }
+
+if ('serviceWorker' in navigator) {
+  navigator.serviceWorker.register('/sw.js');
+}
 </script>
 </body>
 </html>