Switch to embedded video and add thumbnail

Signed-off-by: Flynn <[email protected]>

linkerd.io/content/blog/2024/0524-backstage-and-linkerd.md

@@ -7,6 +7,8 @@ tags:
   - Video
 description: This CNCF Cloud Native Live session explores building a rock-solid Internal Developer Platform (IDP) Backstage that empowers developers with self-service tools while streamlining security and observability.
 keywords: [Backstage; Video]
+thumbnail: '/uploads/2024/05/cnl-backstage-linkerd-thumbnail.png'
+featuredImage: '/uploads/2024/05/cnl-backstage-linkerd-thumbnail.png'
 ---
 Smooth workflows are critical in the cloud-native world. This CNCF Cloud
 Native Live session explores building a rock-solid Internal Developer
@@ -16,5 +18,4 @@ Linkerd Tech Evangelist Flynn and Backstage Maintainer Ben Lambert as
 they show you how a service mesh like Linkerd can supercharge your IDP,
 ensuring seamless communication and clear visibility.
 
-[![Cloud Native Live with Backstage and Linkerd](/uploads/2024/05/cnl-backstage-linkerd-screenshot.png)](https://www.youtube.com/watch?v=43Yq24I0KNI "Cloud Native Live with Backstage and Linkerd")
-
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