feat: update preview video

Author: jovialen

src/layouts/Home/Show.astro

@@ -22,7 +22,7 @@ import { SHOW_START } from "@/lib/constants";
       height="auto"
       class="mx-auto aspect-video w-full max-w-screen-md rounded-lg"
       loading="lazy"
-      src="https://www.youtube.com/embed/LJSPFp4p87Y?si=wmC-GGHTa2EHYRAg"
+      src="https://www.youtube.com/embed/MQBJf0hCznA?si=0ujbg3eG_sriNdCn"
       title="YouTube video player"
       allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share"
       referrerpolicy="strict-origin-when-cross-origin"