Запрос на слияние 'develop' (#1) из develop в master

[docs] add README.md with screenshots

[feat] add changing color theme

[chore] add multiplatform settings dependency

[feat] add dark theme and create switch color mode button

[docs] add README.md with screenshots

[feat] add changing color theme

[chore] add multiplatform settings dependency

[feat] add dark theme and create switch color mode button

[fix] fix error with snackbars, weren't shown

[feat] add order cart

[feat] add scroll on category click and category row autoscroll