fix(conversation): update response Content-Type to JSONL for sending message updates

src/routes/conversation/[id]/+server.ts

@@ -512,7 +512,7 @@ export async function POST({ request, locals, params, getClientAddress }) {
 	// Todo: maybe we should wait for the message to be saved before ending the response - in case of errors
 	return new Response(stream, {
 		headers: {
-			"Content-Type": "text/event-stream",
+			"Content-Type": "application/jsonl",
 		},
 	});
 }