Enhance RocketChat livechat integration with improved error handling

- Refactored the script for initializing the RocketChat livechat widget to include error handling for script loading failures.
- Ensured the RocketChat object is properly initialized and handles cases where it may not exist.
- Added a check for DOM readiness before loading the livechat script, improving reliability and user experience.

src/layouts/Layout.astro

@@ -86,12 +86,51 @@ const { language, textDirection } = I18N;
     <BackToTop />
     
     
-    <script type="text/javascript" defer>
+    <script type="text/javascript">
+      // Initialize RocketChat livechat widget with proper error handling
       (function(w, d, s, u) {
-        w.RocketChat = function(c) { w.RocketChat._.push(c) }; w.RocketChat._ = []; w.RocketChat.url = u;
-        const h = d.getElementsByTagName(s)[0], j = d.createElement(s);
-        j.async = true; j.src = 'https://chat.365devnet.eu/livechat/rocketchat-livechat.min.js?_=201903270000';
-        h.parentNode.insertBefore(j, h);
+        // Initialize RocketChat object if it doesn't exist
+        w.RocketChat = function(c) { 
+          if (w.RocketChat._) {
+            w.RocketChat._.push(c);
+          } else {
+            w.RocketChat._ = [c];
+          }
+        }; 
+        
+        if (!w.RocketChat._) {
+          w.RocketChat._ = [];
+        }
+        
+        w.RocketChat.url = u;
+        
+        // Wait for DOM to be ready before loading the script
+        function loadRocketChat() {
+          try {
+            const h = d.getElementsByTagName(s)[0];
+            if (!h) return;
+            
+            const j = d.createElement(s);
+            j.async = true; 
+            j.src = 'https://chat.365devnet.eu/livechat/rocketchat-livechat.min.js?_=201903270000';
+            
+            // Add error handling for script loading
+            j.onerror = function() {
+              console.warn('RocketChat livechat script failed to load');
+            };
+            
+            h.parentNode.insertBefore(j, h);
+          } catch (error) {
+            console.warn('Error loading RocketChat livechat:', error);
+          }
+        }
+        
+        // Load when DOM is ready
+        if (d.readyState === 'loading') {
+          d.addEventListener('DOMContentLoaded', loadRocketChat);
+        } else {
+          loadRocketChat();
+        }
       })(window, document, 'script', 'https://chat.365devnet.eu/livechat');
     </script>