Update vue-cli to v3

.browserslistrc

@@ -0,0 +1,3 @@
+> 1%
+last 2 versions
+not ie <= 8

.env.development

@@ -0,0 +1 @@
+VUE_APP_WS_URL=ws://localhost:3003

.env.production

@@ -0,0 +1,2 @@
+    VUE_APP_WS_URL=wss://backend.explorer.rsk.co:3003
+    VUE_APP_STATS_URL=https://stats.rsk.co

.eslintrc.js

@@ -1,27 +1,17 @@
-// https://eslint.org/docs/user-guide/configuring
-
 module.exports = {
   root: true,
-  parser: 'babel-eslint',
-  parserOptions: {
-    sourceType: 'module'
-  },
   env: {
-    browser: true,
+    node: true
   },
-  // https://github.com/standard/standard/blob/master/docs/RULES-en.md
-  extends: 'standard',
-  // required to lint *.vue files
-  plugins: [
-    'html'
+  'extends': [
+    'plugin:vue/essential',
+    '@vue/standard'
   ],
-  // add your custom rules here
-  'rules': {
-    // allow paren-less arrow functions
-    'arrow-parens': 0,
-    // allow async-await
-    'generator-star-spacing': 0,
-    // allow debugger during development
-    'no-debugger': process.env.NODE_ENV === 'production' ? 2 : 0
+  rules: {
+    'no-console': process.env.NODE_ENV === 'production' ? 'error' : 'off',
+    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off'
+  },
+  parserOptions: {
+    parser: 'babel-eslint'
   }
-}
+}

.postcssrc.js

@@ -1,9 +1,5 @@
-// https://github.com/michael-ciniawsky/postcss-load-config
-
 module.exports = {
-  "plugins": {
-    // to edit target browsers: use "browserslist" field in package.json
-    "postcss-import": {},
-    "autoprefixer": {}
+  plugins: {
+    autoprefixer: {}
   }
-}
+}

README.md

@@ -2,7 +2,7 @@
 
   Client for rsk-explorer-api
 
-## Build Setup
+## Tasks
 
 ``` bash
 # install dependencies
@@ -14,8 +14,6 @@ npm run dev
 # build for production with minification
 npm run build
 
-# build for production and view the bundle analyzer report
-npm run build --report
 ```
 
 
@@ -30,11 +28,11 @@ npm run build --report
   ```
 
 ### Settings
-
-  The build settings are in src/config/config.json, under 'prod' property.
-  You can override these settings using enviroment variables
 
-E.g. *to change prod.WS_URL:*
+WS_URL: ws backend url
+STATS_URL : rsk stats web  
+
+E.g. *to change WS_URL:*
     ``` bash
       export WS_URL=wss://backend.rsk.co
     ```

babel.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+  presets: [
+    '@vue/app'
+  ]
+}