feat: Add preview_video for sights

src/widgets/index.ts

@@ -12,6 +12,7 @@ export * from "./MediaArea";
 export * from "./ModelViewer3D";
 export * from "./MediaAreaForSight";
 export * from "./ImageUploadCard";
+export * from "./VideoPreviewCard";
 export * from "./LeaveAgree";
 export * from "./DeleteModal";
 export * from "./SnapshotRestore";