update webhook content type check

src/routes/webhook/tradingview/+server.ts

@@ -6,7 +6,7 @@ import { z } from 'zod'
 
 export const POST = async ({ locals, request }) => {
 	const type = request.headers.get('Content-Type')
-	if (type !== 'application/json; charset=utf-8') {
+	if (!type || !type.startsWith('application/json')) {
 		return new Response()
 	}