feat: chat input focus on new chat

src/routes/(app)/+page.svelte

@@ -134,6 +134,9 @@
 		settings.set({
 			..._settings
 		});
+
+		const chatInput = document.getElementById('chat-textarea');
+		setTimeout(() => chatInput?.focus(), 0);
 	};
 
 	const scrollToBottom = () => {

src/routes/(app)/c/[id]/+page.svelte

@@ -99,6 +99,9 @@
 			if (await loadChat()) {
 				await tick();
 				loaded = true;
+
+				const chatInput = document.getElementById('chat-textarea');
+				chatInput?.focus();
 			} else {
 				await goto('/');
 			}