Fix XamlTestApplication.
Fix XamlTestApplication.

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