Fix spectate command resetting gamemode when spectating someone in another dimension (#2365)

* Fix gamemode change on dimension change 

This issue happened when using the spectate command on a player in another dimension. the spectator was set to survival mode.

* Fix player gamemode reset bug

When spectating a player in another dimension, you would previously get set to survival mode, this is now fixed.

Author: GroupXyz2

common/src/main/java/ac/grim/grimac/events/packets/PacketPlayerRespawn.java

@@ -210,7 +210,9 @@ public void onPacketSend(PacketSendEvent event) {
                 }
                 player.pose = Pose.STANDING;
                 player.clientVelocity = new Vector3dm();
-                player.gamemode = respawn.getGameMode();
+                if (!GrimAPI.INSTANCE.getSpectateManager().isSpectating(player.uuid)) {
+                    player.gamemode = respawn.getGameMode();
+                }  
                 if (PacketEvents.getAPI().getServerManager().getVersion().isNewerThanOrEquals(ServerVersion.V_1_17)) {
                     player.compensatedWorld.setDimension(respawn.getDimensionType(), event.getUser());
                 }