ui: use monaco instead of codemirror on api page

packages/ui-default/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.39.10",
+  "version": "4.39.11",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",
@@ -65,6 +65,7 @@
     "monaco-editor": "^0.33.0",
     "monaco-editor-nls": "^2.0.0",
     "monaco-editor-webpack-plugin": "^7.0.1",
+    "monaco-graphql": "^1.1.2",
     "monaco-themes": "^0.4.2",
     "monaco-yaml": "^4.0.0",
     "nanoid": "^4.0.0",
@@ -91,7 +92,6 @@
     "redux-thunk": "^2.4.1",
     "rupture": "^0.7.1",
     "slideout": "^1.0.1",
-    "speed-measure-webpack-plugin": "^1.5.0",
     "sticky-kit": "^1.1.3",
     "style-loader": "^3.3.1",
     "stylus": "^0.59.0",