Added two features: move to monitor and open new app keybinding

## Move to monitor.
* `<Super><Shift>Left` and `<Super><Shift>Right` move the currently active window left or right from your current monitor.
* In the right click menu "Move to monitor X" is available for each monitor you have.

## Open new app window keybinding.
Using `<Super><Shift>Number` will open a new app instead of focus it.

These features are based off of the 2.7.5 release, rather than the current development version.