perf: remove unnecessary await tick() from chatEventHandler hot path

Author: Algorithm5838

src/lib/components/chat/Chat.svelte

@@ -397,7 +397,6 @@
 		console.log(event);
 
 		if (event.chat_id === $chatId) {
-			await tick();
 			let message = history.messages[event.message_id];
 
 			if (message) {