added support chat

Author: arcbtc

index.html

@@ -686,6 +686,22 @@ <h5 class="ud-widget-title">LNbits runs on:</h5>
 
     window.document.addEventListener("scroll", onScroll);
   </script>
+
+  <div id="lnbits-chat-embed-root">
+  <iframe id="lnbits-chat-embed-iframe" src="https://v1.lnbits.com/chat/embed/8cQkX3YdaxuVGEtUC5eX2a?min=1&label=Chat%20to%20us" style="position:fixed;right:24px;bottom:24px;width:360px;height:56px;border:0;border-radius:12px;box-shadow:0 16px 40px rgba(0,0,0,.35);z-index:9999;transition:height .2s ease;overflow:hidden;"></iframe>
+</div>
+<script>
+  (function() {
+    var iframe = document.getElementById('lnbits-chat-embed-iframe');
+    if (!iframe) return;
+    var minHeight = 56;
+    var maxHeight = 520;
+    window.addEventListener('message', function(event) {
+      if (!event.data || event.data.source !== 'lnbits-chat-embed') return;
+      iframe.style.height = event.data.open ? maxHeight + 'px' : minHeight + 'px';
+    });
+  })();
+</script>
 </body>
 
 </html>