* add LanguageDirection variable
* add .direction-rtl and .direction-ltr clases
* margin -right > margin-inline-end
* keep Codeblocks LTR
* switch to logical properties
* left -> inset-inline-start
* Add Arabic/RTL placeholder text
* Add arabic language
* remove space
* use Html Dir instead of class
* Move codeblock code to layout/article.css and fix 4 spaces codeblocks
* remove unused clases
