build(frontend): rebuild static/ on the merged tip (#2656)

One build on the tip after merging dev, per the branch'"'"'s standing rule
that intermediate commits carry a stale bundle and only the tip has to be
right.

dev'"'"'s CSS moved to index-Db2rfQf-.css while this branch was out; the
rebuild lands on the same hash, so static/index.html differs from dev by
the script line alone again.

static/index.html

@@ -26,8 +26,8 @@
 
     <!-- Splash screens for iOS -->
     <link rel="apple-touch-startup-image" href="/img/android-chrome-512x512.png" />
-    <script type="module" crossorigin src="/assets/index-wb4vHygD.js"></script>
-    <link rel="stylesheet" crossorigin href="/assets/index-B3jj6-fz.css">
+    <script type="module" crossorigin src="/assets/index-xxgQH7Sb.js"></script>
+    <link rel="stylesheet" crossorigin href="/assets/index-Db2rfQf-.css">
   </head>
   <body>
     <div id="root"></div>