Add the option for switching square brackets around the names of minimized windows

[SauronfromMordor]

[LStranger]

Thank you very much. Will consider it for version 0.11.0.

[ib]

I don't understand the position of the new option between "windows from all desktops" and "windows on same monitor". The new option should either be placed before (at position 3) or - easier - at the end.