* new variable for customize margins and font-size on menu
* vars for icons size for menu items
* var for color of icon selected-item on dark menu
* menu selected item: vars for color text and icon
* var for background on hover item in dark menu
* rename variable
* deleted vars for icon size in menu
* change @menu-item-last-margin to @menu-item-boundary-margin
* rename .stylelintrc to .stylelintrc.json for explicit file type
* add new npm script lint-fix:style
* fix pseudo-element with double colon
* function name should be lower except ignored functions
* support stylelint declaration-block-no-ignored-properties rule
* support sorted CSS properties order for readability and consistency
* autofix order of all styles by lint-fix:style script
* remove double slash comments after selector
* replace .stylelintignore with ignoreFiles in .stylelintrc.json
