chat: clicking the title goes back to the conversation list

Same path as the back-caret — a bigger, easier target than the
icon. No-op when already on the list.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

public/plugins/chat/chat.js

@@ -749,7 +749,12 @@ function init() {
     $('chat-refresh-btn').addEventListener('click', () => pollOnce().then(loadConversations));
     $('chat-new-btn').addEventListener('click', openPickView);
     $('chat-empty-start')?.addEventListener('click', openPickView);
-    $('chat-header-back').addEventListener('click', () => { showListView(); loadConversations(); });
+    const gotoList = () => { showListView(); loadConversations(); };
+    $('chat-header-back').addEventListener('click', gotoList);
+    // Clicking the "chat" title is the same as hitting the back caret —
+    // a second affordance so users don't have to aim at a small icon.
+    // No-op when already on the list (showListView is idempotent).
+    $('chat-flyout-title')?.addEventListener('click', gotoList);
     $('chat-pick-back').addEventListener('click', showListView);
     $('chat-thread-form').addEventListener('submit', sendMessage);
     $('chat-thread-info')?.addEventListener('click', openRoomInfo);