feat: downgrade tinymce and fix editor config

package.json

@@ -12,7 +12,7 @@
   "dependencies": {
     "@nuxtjs/axios": "^5.13.6",
     "@pinia/nuxt": "^0.11.2",
-    "@tinymce/tinymce-vue": "^6.3.0",
+    "@tinymce/tinymce-vue": "^5.0.0",
     "@types/tinymce": "^5.5.0",
     "decimal.js": "^10.6.0",
     "echarts": "^6.0.0",
@@ -20,7 +20,7 @@
     "nuxt": "^3.18.1",
     "pdfjs-dist": "^5.4.54",
     "pinia": "^3.0.3",
-    "tinymce": "^8.0.2",
+    "tinymce": "^6.2.0",
     "vue": "^3.5.18",
     "vue-pdf-embed": "^2.1.3",
     "vue-router": "^4.5.1",