Normalize and enforce single quotes in styles

- Replace stylelint property in package.json with .stylelintrc.js
- Add string-quotes stylelint rule
- Fix quotes

.stylelintrc.js

@@ -0,0 +1,29 @@
+module.exports = {
+  'extends': 'stylelint-config-standard',
+  'rules': {
+    'no-empty-source': null,
+    'string-quotes': 'single',
+    'at-rule-no-unknown': [
+      true,
+      {
+        'ignoreAtRules': [
+          'extend',
+          'at-root',
+          'debug',
+          'warn',
+          'error',
+          'if',
+          'else',
+          'for',
+          'each',
+          'while',
+          'mixin',
+          'include',
+          'content',
+          'return',
+          'function',
+        ],
+      },
+    ],
+  },
+};

package.json

@@ -22,34 +22,6 @@
     "android 4",
     "opera 12"
   ],
-  "stylelint": {
-    "extends": "stylelint-config-standard",
-    "rules": {
-      "no-empty-source": null,
-      "at-rule-no-unknown": [
-        true,
-        {
-          "ignoreAtRules": [
-            "extend",
-            "at-root",
-            "debug",
-            "warn",
-            "error",
-            "if",
-            "else",
-            "for",
-            "each",
-            "while",
-            "mixin",
-            "include",
-            "content",
-            "return",
-            "function"
-          ]
-        }
-      ]
-    }
-  },
   "scripts": {
     "build": "webpack --progress --config resources/assets/build/webpack.config.js",
     "build:production": "webpack --progress -p --config resources/assets/build/webpack.config.js",

resources/assets/styles/autoload/_bootstrap.scss

@@ -1 +1 @@
-@import "~bootstrap/scss/bootstrap";
+@import '~bootstrap/scss/bootstrap';

resources/assets/styles/common/_variables.scss

@@ -1,5 +1,5 @@
 /** Import Bootstrap functions */
-@import "~bootstrap/scss/functions";
+@import '~bootstrap/scss/functions';
 
 $theme-colors: (
   primary: #525ddc

resources/assets/styles/components/_comments.scss

@@ -10,14 +10,14 @@
   @extend .form-group;
 }
 
-.comment-form input[type="text"],
-.comment-form input[type="email"],
-.comment-form input[type="url"],
+.comment-form input[type='text'],
+.comment-form input[type='email'],
+.comment-form input[type='url'],
 .comment-form textarea {
   @extend .form-control;
 }
 
-.comment-form input[type="submit"] {
+.comment-form input[type='submit'] {
   @extend .btn;
   @extend .btn-secondary;
 }

resources/assets/styles/main.scss

@@ -1,7 +1,7 @@
-@import "common/variables";
+@import 'common/variables';
 
 /** Import everything from autoload */
-@import "./autoload/**/*";
+@import './autoload/**/*';
 
 /**
  * Import npm dependencies
@@ -9,17 +9,17 @@
  * Prefix your imports with `~` to grab from node_modules/
  * @see https://github.com/webpack-contrib/sass-loader#imports
  */
-// @import "~some-node-module";
+// @import '~some-node-module';
 
 /** Import theme styles */
-@import "common/global";
-@import "components/buttons";
-@import "components/comments";
-@import "components/forms";
-@import "components/wp-classes";
-@import "layouts/header";
-@import "layouts/sidebar";
-@import "layouts/footer";
-@import "layouts/pages";
-@import "layouts/posts";
-@import "layouts/tinymce";
+@import 'common/global';
+@import 'components/buttons';
+@import 'components/comments';
+@import 'components/forms';
+@import 'components/wp-classes';
+@import 'layouts/header';
+@import 'layouts/sidebar';
+@import 'layouts/footer';
+@import 'layouts/pages';
+@import 'layouts/posts';
+@import 'layouts/tinymce';