修复打包过后404的bug

web/package.json

@@ -10,7 +10,7 @@
   "dependencies": {
     "@moefe/vue-aplayer": "^2.0.0-beta.5",
     "axios": "^0.19.0",
-    "core-js": "^2.6.5",
+    "core-js": "^3.6.5",
     "echarts": "^4.7.0",
     "element-ui": "^2.12.0",
     "mavon-editor": "^2.7.7",
@@ -33,12 +33,12 @@
     "vuex-persist": "^2.1.0"
   },
   "devDependencies": {
-    "@vue/cli-plugin-babel": "^3.11.0",
-    "@vue/cli-plugin-eslint": "^3.11.0",
-    "@vue/cli-service": "^3.11.0",
-    "babel-eslint": "^10.0.1",
-    "eslint": "^5.16.0",
-    "eslint-plugin-vue": "^5.0.0",
+    "@vue/cli-plugin-babel": "^4.5.6",
+    "@vue/cli-plugin-eslint": "^4.5.6",
+    "@vue/cli-service": "^4.5.6",
+    "babel-eslint": "^10.1.0",
+    "eslint": "^6.7.2",
+    "eslint-plugin-vue": "^6.2.2",
     "vue-template-compiler": "^2.6.10"
   },
   "eslintConfig": {