refac: dropzone body -> chat-container

src/lib/components/chat/Chat.svelte

@@ -2009,6 +2009,7 @@
 		class="h-screen max-h-[100dvh] {$showSidebar
 			? 'md:max-w-[calc(100%-260px)]'
 			: ''} w-full max-w-full flex flex-col"
+		id="chat-container"
 	>
 		{#if $settings?.backgroundImageUrl ?? null}
 			<div

src/lib/components/chat/MessageInput.svelte

@@ -178,8 +178,7 @@
 	onMount(() => {
 		window.setTimeout(() => chatTextAreaElement?.focus(), 0);
 
-		const dropZone = document.querySelector('body');
-
+		const dropZone = document.getElementById('chat-container');
 		const handleKeyDown = (event: KeyboardEvent) => {
 			if (event.key === 'Escape') {
 				console.log('Escape');