From previous commits:
- updated core library;
this fixes getting available space on systems with lots of disks
- added patch folder selection during initial setup
- fixed error panicking when you're closing folder selection dialogue
during initial setup
- disabled mangohud if gamescope is enabled
Reworked work with config file
- now missing fields will be automatically filled;
excess fields - removed.
thanks to new code structure I can easily create
new fields or rename old ones
- improved `WineLang` enum; now launcher loads languages list dynamically
from this enum so I can easily add support for new languages
Initial setup changes
- renamed "page_*" to some actual pages names
- added voice packages selection page
- made "Advanced" button working. It shows default paths selection page
