feat: move cookies button to quick actions toolbar

Cookies now sits next to Cleanup and Screenshot as a primary action
button (🍪 Cookies) instead of buried in the footer. Same behavior,
more discoverable.

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

extension/sidepanel.html

@@ -141,6 +141,7 @@
   <div class="quick-actions" id="quick-actions">
     <button id="chat-cleanup-btn" class="quick-action-btn" title="Remove ads, banners, popups">🧹 Cleanup</button>
     <button id="chat-screenshot-btn" class="quick-action-btn" title="Take a screenshot">📸 Screenshot</button>
+    <button id="chat-cookies-btn" class="quick-action-btn" title="Import cookies from your browser">🍪 Cookies</button>
   </div>
 
   <!-- Command Bar -->
@@ -156,7 +157,6 @@
       <button class="debug-toggle" id="debug-toggle" title="Toggle debug panels">debug</button>
       <button class="footer-btn" id="clear-chat" title="Clear chat">clear</button>
       <button class="footer-btn" id="reload-sidebar" title="Reload sidebar">reload</button>
-      <button class="footer-btn" id="copy-cookies" title="Import cookies from your browser">cookies</button>
     </div>
     <div class="footer-right">
       <span class="dot" id="footer-dot"></span>

extension/sidepanel.js

@@ -660,7 +660,7 @@ document.getElementById('reload-sidebar').addEventListener('click', () => {
 });
 
 // ─── Copy Cookies ───────────────────────────────────────────────
-document.getElementById('copy-cookies').addEventListener('click', async () => {
+document.getElementById('chat-cookies-btn').addEventListener('click', async () => {
   if (!serverUrl) return;
   // Navigate the browser to the cookie picker page hosted by the browse server
   try {