Do not disturb

You can now enable slack's "do not disturb" functionality while a pomodoro is in progress

Many thanks again to @bradbumbalough

Minor UX improvements

Some small coloring change to configuration toggles to make their state more obvious.

thanks to @bradbumbalough

1.2.0

Tomaat gets tray support! The timer will now be displayed in the OS tray.

1.1.0

Tomaat now supports playing a pleasant music box tone when the timer is finished. This will only play if enabled via settings.

Tomaat 1.0.0

The initial release of Tomaat.

This has only been built and tested on macOS.