Fix null profile key breaking nullability contracts for PlayerProfile API (#8233)

patches/server/Kick-on-main-for-illegal-chat.patch

@@ -31,7 +31,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
              if (this.tryHandleChat(packet.command(), packet.timeStamp(), packet.lastSeenMessages())) {
                  this.server.submit(() -> {
 @@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
-     private boolean tryHandleChat(String message, Instant timestamp, LastSeenMessages.Update acknowledgment) {
+         // Paper end
          if (!this.updateChatOrder(timestamp)) {
              ServerGamePacketListenerImpl.LOGGER.warn("{} sent out-of-order chat: '{}'", this.player.getName().getString(), message);
 +            this.server.scheduleOnMain(() -> { // Paper - push to main