feat: update modal

package.json

@@ -16,6 +16,7 @@
     "dotenv": "^16.3.1",
     "pinia": "^2.1.6",
     "sass": "^1.67.0",
+    "showdown": "^2.1.0",
     "vue": "^3.3.4",
     "vue-i18n": "^9.4.1",
     "vue-router": "^4.2.4"
@@ -23,6 +24,7 @@
   "devDependencies": {
     "@rushstack/eslint-patch": "^1.3.3",
     "@types/node": "^20.6.2",
+    "@types/showdown": "^2.0.6",
     "@vite-pwa/assets-generator": "^0.2.4",
     "@vitejs/plugin-vue": "^4.3.4",
     "@vue/eslint-config-prettier": "^8.0.0",