feat: chat pdf download

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

@@ -847,6 +847,7 @@
 		bind:selectedModels
 		bind:showModelSelector
 		shareEnabled={messages.length > 0}
+		{chat}
 		{initNewChat}
 		{tags}
 		{addTag}

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

@@ -865,6 +865,7 @@
 	<div class="min-h-screen max-h-screen w-full flex flex-col">
 		<Navbar
 			{title}
+			{chat}
 			bind:selectedModels
 			bind:showModelSelector
 			shareEnabled={messages.length > 0}