use markdown it/katex from vscode instead

package.json

@@ -17,6 +17,7 @@
     "@octokit/core": "^5.2.0",
     "@octokit/rest": "^20.1.1",
     "@toycode/markdown-it-class": "^1.2.4",
+    "@vscode/markdown-it-katex": "^1.1.1",
     "@vueuse/core": "^10.11.1",
     "@vueuse/router": "^10.11.1",
     "date-fns": "^2.30.0",
@@ -29,7 +30,6 @@
     "markdown-it-footnote": "^4.0.0",
     "markdown-it-github-alerts": "^0.3.0",
     "markdown-it-iframe": "^1.0.0",
-    "markdown-it-latex": "^0.2.0",
     "markdown-it-shikiji": "^0.10.2",
     "nanoid": "^5.0.9",
     "notyf": "^3.10.0",