perf(db): add indexes for snapshots

Author: immccn123

packages/viewer/package.json

@@ -24,7 +24,7 @@
     "react-markdown": "^8.0.0",
     "rehype-highlight": "^6.0.0",
     "rehype-katex": "^6.0.0",
-    "remark-gfm": "^4.0.0",
+    "remark-gfm": "^3.0.0",
     "remark-luogu-flavor": "^1.0.0",
     "remark-math": "^6.0.0",
     "socket.io-client": "^4.7.2",