Issue 5109 - Create stylelintrc for websites and ui modules

stylelint-config-eyeo/index.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 31 matching lines @@
     "rule-empty-line-before": ["always", {
       "ignore": ["after-comment", "first-nested"]
     }],
 
     // Use double over single quotation marks
     "string-quotes": "double",
 
     // CSS color values should be specified in hexadecimal where possible
     "color-named": "never",
 
-    // Use 3 character hexadecimal notation where possible
+    // Use short hexadecimal notation where possible
     "color-hex-length": "short",
 
     // Don't omit the optional leading 0 for decimal numbers
     "number-leading-zero": "always",
     "number-no-trailing-zeros": true,
 
     // Two spaces per logic level
     "indentation": 2,
 
     // Line length should be 80 characters or less
     "max-line-length": 80,
 
     // Avoid qualifying ID and class names with type selectors
     "selector-no-qualifying-type": [true, {
       "ignore": ["attribute"]
     }]
   }
 };