Work on add contact to contact list

src/main/java/org/to/telegramfinalproject/Server/MainServer.java

@@ -7,7 +7,7 @@ import java.net.ServerSocket;
 import java.net.Socket;
 
 public class MainServer {
-    private static final int PORT = 12345;
+    private static final int PORT = 8000;
 
     public static void main(String[] args) {
         try (ServerSocket serverSocket = new ServerSocket(PORT)) {