Use official KaTeX assets for math rendering

package-lock.json

@@ -13,6 +13,7 @@
         "cheerio": "1.0.0",
         "express": "^4.19.2",
         "fs-extra": "^11.2.0",
+        "katex": "^0.17.0",
         "nanoid": "^5.0.7",
         "playwright": "1.61.1",
         "sanitize-filename": "^1.6.3",
@@ -1403,6 +1404,15 @@
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     },
+    "node_modules/commander": {
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-8.3.0.tgz",
+      "integrity": "sha512-OkTL9umf+He2DZkUq8f8J9of7yL6RJKI24dVITBmNfZBmri9zYZQrKkuXiKhyfPSu8tUhnVBB1iKXevvnlR4Ww==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 12"
+      }
+    },
     "node_modules/compress-commons": {
       "version": "6.0.2",
       "resolved": "https://registry.npmjs.org/compress-commons/-/compress-commons-6.0.2.tgz",
@@ -2182,6 +2192,22 @@
         "graceful-fs": "^4.1.6"
       }
     },
+    "node_modules/katex": {
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/katex/-/katex-0.17.0.tgz",
+      "integrity": "sha512-Vdw0ATsQ9V+LuegM/BTwQqV/6cTl5lbGcIrU+BCgLxyf6bo38ybOr372tuSIxir3CN720flu1meYR6XzNMwQnw==",
+      "funding": [
+        "https://opencollective.com/katex",
+        "https://github.com/sponsors/katex"
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "commander": "^8.3.0"
+      },
+      "bin": {
+        "katex": "cli.js"
+      }
+    },
     "node_modules/lazystream": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/lazystream/-/lazystream-1.0.1.tgz",