Fix all of the nullable issues

MistoxServer/Server/MistoxServer.cs

@@ -22,6 +22,9 @@ namespace Mistox.Server {
         public MistoxServer(IPEndPoint ListenerAddress, string serverName) {
             ServerName = serverName;
             Listener = new ServerListener(ListenerAddress, this);
+            onUserConnected += (_) => {};
+            onDataReceived += (_, _) => {};
+            onUserDisconnected += (_) => {};
             Console.WriteLine( "The Server is initilized and waiting for clients to connect at port : " + ListenerAddress.Port );
         }
 
@@ -80,7 +83,7 @@ namespace Mistox.Server {
 
         public event Action<ServerConnection, object> onDataReceived;
         public void InvokeDataReceived( ServerConnection user, dynamic data ){
-            switch (data)  {
+            switch (data) {
                 case UserAuthPacket packet when !user.IsAuthenticated:
                     _ = RunAsync(async () => {
                         await ProcessAuthRequest(user, packet);