Fix the final review's findings on the combined features

- Links to localhost need FRAME_CONTROL_LOCAL_LINKS=1: otherwise any website's
  link could make the app fetch from services on this computer.
- Title staging folders (unzipped titles) carry the server's PID and are swept
  on the next start like download folders, so quitting mid-install doesn't leave
  gigabytes behind.
- An install from a link refreshes Sideloaded titles.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

ui/index.html

@@ -1880,7 +1880,7 @@ async function wiPoll(gen) {
     if (j.phase === "done") {
       log(j.message, "ok"); toast(j.message);
       $("wiDlg").close();
-      loadAndroid(); refresh();
+      loadAndroid(); loadTitles(); refresh();
     } else {
       $("wiMsg").textContent = j.error;
       log(`Install from link failed: ${j.error}`, "e"); toast(`Install failed: ${j.error}`, true);