feat: Setup ESLint and Prettier.

Author: sustained

.eslintrc.js

@@ -0,0 +1,17 @@
+module.exports = {
+  root: true,
+  env: {
+    node: true,
+    es6: true,
+  },
+  extends: ['prettier', 'plugin:vue/essential', '@vue/prettier'],
+  rules: {
+    'prettier/prettier': 'error',
+    'no-console': process.env.NODE_ENV === 'production' ? 'error' : 'off',
+    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',
+    'func-call-spacing': 'warn',
+  },
+  parserOptions: {
+    parser: 'babel-eslint',
+  },
+}

.prettierrc.js

@@ -0,0 +1,8 @@
+module.exports = {
+  semi: false,
+  tabs: false,
+  tabWidth: 2,
+  singleQuote: true,
+  trailingComma: 'es5',
+  bracketSpacing: true,
+}