docs(home): refresh the product overview video

The video now covers escalation when nobody acknowledges, Monitors alerting
across metrics, logs and databases, and RUM error tracking, session replay
and page performance.

Author: ysyneu

en/home.mdx

@@ -11,8 +11,8 @@ sidebarTitle: Overview
   playsInline
   preload="metadata"
   className="w-full aspect-video rounded-xl"
-  src="https://static.flashcat.cloud/flashduty-docs/videos/film-en-1500e9cd.mp4"
-  poster="https://static.flashcat.cloud/videos/flashduty/flashduty-film-v8-en.jpg"
+  src="https://static.flashcat.cloud/flashduty-docs/videos/film-en-5d6bdc8d.mp4"
+  poster="https://static.flashcat.cloud/videos/flashduty/flashduty-film-v9-en.jpg"
   aria-label="Flashduty product overview video"
 ></video>
 

zh/home.mdx

@@ -12,8 +12,8 @@ sidebarTitle: 概览
   playsInline
   preload="metadata"
   className="w-full aspect-video rounded-xl"
-  src="https://static.flashcat.cloud/flashduty-docs/videos/film-zh-538a297f.mp4"
-  poster="https://static.flashcat.cloud/videos/flashduty/flashduty-film-v8-zh.jpg"
+  src="https://static.flashcat.cloud/flashduty-docs/videos/film-zh-7229cb04.mp4"
+  poster="https://static.flashcat.cloud/videos/flashduty/flashduty-film-v9-zh.jpg"
   aria-label="Flashduty 产品介绍视频"
 ></video>