chore: added changelog for update modal

package.json

@@ -15,6 +15,7 @@
     "axios": "^1.6.2",
     "lucide-vue-next": "^0.525.0",
     "pinia": "^2.1.7",
+    "showdown": "^2.1.0",
     "vue": "^3.3.11",
     "vue-i18n": "11",
     "vue-router": "^4.2.5",
@@ -22,6 +23,7 @@
   },
   "devDependencies": {
     "@types/node": "^22.13.10",
+    "@types/showdown": "^2.0.6",
     "@vitejs/plugin-vue": "^4.5.2",
     "@vue/eslint-config-prettier": "^8.0.0",
     "@vue/eslint-config-typescript": "^12.0.0",