Apply lesson cover as poster for embedded kinescopeVideo nodes

graphify-out/cache/semantic/8e74f87b3c0cae858d5d7d56301decc7ef95096f6e92529597a73da71ed96295.json

@@ -0,0 +1 @@
+{"nodes": [{"id": "next_config_ts", "label": "Next.js Config", "file_type": "code", "source_file": "next.config.ts"}], "edges": [], "hyperedges": []}