start to add chat feature

src/index.html

@@ -42,9 +42,15 @@
             </div>
         </div>
     </div>
+    
     <div id="counter-container">
         <span>Nombre de fans connectés : <span id="value">x</span></span>
     </div>
+    <div id="chat-button">
+        <img src="./images/chat.png">
+    </div>
+    <div id="chat">
+    </div>
     <script src="https://danby.aniere.fr:3000/socket.io/socket.io.js"></script>
     <script src="https://unpkg.com/swiper@8/swiper-bundle.min.js"></script>
     <script src="script.js"></script>