Refactored chat implementation to work with Websockets;

Fixed video.js working on Docker Container;
Added sample video to VideoPlayer for now;
Bug: Requests to the server take extra long to return a response;

nginx/nginx.conf

@@ -46,5 +46,9 @@ http {
         location / {
             proxy_pass http://frontend:5173;  # frontend is the name of the React container in docker-compose
         }
+
+        location /socket.io/ {
+            proxy_pass http://web_server:5000/socket.io/;
+        }
     }
 }