Added more contrast to the selected item in Alt + Tab (Resolves #29)

Dash improvements

Update README.md

Switcher list fixes

Add missings styles for arrow if app has multiple windows
Fix background color in selected app when browsing their windows

Separate overview screenshots

Datemenu: change events/weather/clock text colors

Buttons: fix qs buttons (44), add clear button styles back

Fixes #1

Update README.md

Change page navigation arrow behavior