chore: update eslint config and use prettier (webpack-contrib#796)

Author: evilebottnawi

.editorconfig

@@ -0,0 +1,13 @@
+# editorconfig.org
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+insert_final_newline = true
+trim_trailing_whitespace = false

.eslintignore

@@ -0,0 +1,3 @@
+/node_modules
+/lib/url/escape.js
+/lib/css-base.js

.eslintrc.js

@@ -0,0 +1,11 @@
+module.exports = {
+  root: true,
+  plugins: ['prettier'],
+  extends: ['@webpack-contrib/eslint-config-webpack'],
+  rules: {
+    'prettier/prettier': [
+      'error',
+      { singleQuote: true, trailingComma: 'es5', arrowParens: 'always' },
+    ],
+  },
+};

.eslintrc.yml

@@ -1,3 +1,3 @@
-yarn.lock -diff
+package-lock.json -diff
 * text=auto
 bin/* eol=lf

.gitattributes

@@ -1,4 +1,18 @@
-node_modules
-coverage
-npm-debug.log
+logs
+*.log
+npm-debug.log*
+.eslintcache
+
+/coverage
+/dist
+/local
+/reports
+/node_modules
+
+.DS_Store
+Thumbs.db
 .idea
+*.iml
+.vscode
+*.sublime-project
+*.sublime-workspace

.gitignore

@@ -0,0 +1,5 @@
+{
+  "singleQuote": true,
+  "trailingComma": "es5",
+  "arrowParens": "always"
+}