change code editor to codemirror.

package.json

@@ -10,13 +10,17 @@
     "fmt": "prettier --write src *.ts"
   },
   "dependencies": {
+    "@codemirror/lang-cpp": "^6.0.2",
+    "@codemirror/lang-java": "^6.0.1",
+    "@codemirror/lang-javascript": "^6.1.5",
+    "@codemirror/lang-python": "^6.1.2",
     "@element-plus/icons-vue": "^2.1.0",
-    "@monaco-editor/loader": "^1.3.3",
     "@vueuse/core": "^9.13.0",
     "@wangeditor/editor": "^5.1.23",
     "@wangeditor/editor-for-vue": "^5.1.12",
     "axios": "1.3.4",
     "chart.js": "^4.2.1",
+    "codemirror": "^6.0.1",
     "copy-text-to-clipboard": "^3.1.0",
     "date-fns": "^2.29.3",
     "highlight.js": "^11.7.0",
@@ -26,6 +30,7 @@
     "pinia": "^2.0.33",
     "vue": "^3.2.47",
     "vue-chartjs": "^5.2.0",
+    "vue-codemirror": "^6.1.1",
     "vue-router": "^4.1.6"
   },
   "devDependencies": {
@@ -34,7 +39,6 @@
     "@vitejs/plugin-legacy": "^4.0.2",
     "@vitejs/plugin-vue": "^4.1.0",
     "markdown-it-shiki": "^0.8.0",
-    "monaco-editor": "0.30.1",
     "prettier": "^2.8.7",
     "terser": "^5.16.8",
     "typescript": "^5.0.3",