- added dark theme (add themes system at all)
From 1.6.1 preparations:
- fixed default runner installation
- disabled dxvk cache auto-deletion
- added wineserver env to winetricks
- added cabextract requirement
- added roadmap goal (issue #35)
- fixed issue with incorrect wine version unpacking
- added temp unpacking notification to progress bar
because for some reasons it lags a bit
- removed excess locales
