Update dependency nuxt to v3 [SECURITY]

Author: renovate[bot]

package.json

@@ -34,7 +34,7 @@
     "core-js": "3.15.2",
     "cross-env": "7.0.3",
     "express": "4.17.1",
-    "nuxt": "2.15.8",
+    "nuxt": "3.12.4",
     "nuxt-i18n": "6.27.3",
     "nuxt-property-decorator": "2.9.1",
     "nuxt-svg-loader": "1.2.0",