fix: add login checks before sending packet when the state is not PLAY

src/main/java/me/chayapak1/chomens_bot/plugins/ChatPlugin.java

@@ -266,10 +266,14 @@ public class ChatPlugin extends Bot.Listener {
     }
 
     public void sendCommandInstantly (String command) {
+        if (!bot.loggedIn) return;
+
         bot.session.send(new ServerboundChatCommandPacket(command));
     }
 
     public void sendChatInstantly (String message) {
+        if (!bot.loggedIn) return;
+
         bot.session.send(new ServerboundChatPacket(
                 message,
                 Instant.now().toEpochMilli(),

src/main/java/me/chayapak1/chomens_bot/plugins/PositionPlugin.java

@@ -43,7 +43,7 @@ public class PositionPlugin extends Bot.Listener {
 
         // notchian clients also does this, sends the position packet every second
         bot.executor.scheduleAtFixedRate(() -> {
-            if (isGoingDownFromHeightLimit) return;
+            if (!bot.loggedIn || isGoingDownFromHeightLimit) return;
 
             bot.session.send(new ServerboundMovePlayerPosPacket(
                     false,