Fixed tabs in Window.cs
Fixed tabs in Window.cs

jkoritzinsky/Avalonia,jkoritzinsky/Avalonia,jazzay/Perspex,wieslawsoltes/Perspex,grokys/Perspex,OronDF343/Avalonia,susloparovdenis/Avalonia,AvaloniaUI/Avalonia,AvaloniaUI/Avalonia,OronDF343/Avalonia,AvaloniaUI/Avalonia,wieslawsoltes/Perspex,MrDaedra/Avalonia,punker76/Perspex,susloparovdenis/Perspex,akrisiun/Perspex,jkoritzinsky/Avalonia,wieslawsoltes/Perspex,Perspex/Perspex,SuperJMN/Avalonia,AvaloniaUI/Avalonia,wieslawsoltes/Perspex,Perspex/Perspex,jkoritzinsky/Perspex,susloparovdenis/Perspex,SuperJMN/Avalonia,wieslawsoltes/Perspex,SuperJMN/Avalonia,SuperJMN/Avalonia,SuperJMN/Avalonia,AvaloniaUI/Avalonia,susloparovdenis/Avalonia,jkoritzinsky/Avalonia,jkoritzinsky/Avalonia,MrDaedra/Avalonia,AvaloniaUI/Avalonia,wieslawsoltes/Perspex,SuperJMN/Avalonia,grokys/Perspex,wieslawsoltes/Perspex,jkoritzinsky/Avalonia,jkoritzinsky/Avalonia,SuperJMN/Avalonia,AvaloniaUI/Avalonia