Update package.json, fix #600

frontend/package.json

@@ -21,7 +21,7 @@
     "chart.js": "^2.8.0",
     "codemirror": "^5.48.2",
     "js-cookie": "^2.2.1",
-    "nuxt": "^2.0.0",
+    "nuxt": "^2.11.0",
     "papaparse": "^5.0.2",
     "tui-editor": "^1.4.5",
     "vue-chartjs": "^3.4.2",
@@ -43,7 +43,7 @@
     "eslint-plugin-import": ">=2.16.0",
     "eslint-plugin-jest": ">=22.3.0",
     "eslint-plugin-node": ">=8.0.1",
-    "eslint-plugin-nuxt": ">=0.4.2",
+    "eslint-plugin-nuxt": "^0.5.1",
     "eslint-plugin-promise": ">=4.0.1",
     "eslint-plugin-standard": ">=4.0.0",
     "eslint-plugin-vue": "^5.2.2",