Ava UI: Allow DPI switching (#5558)

ForceDpiAware.Windows has a side effect of forcing the application DPI to be the same as the primary monitor. This isn't good if you have multiple monitors with different DPI.

On Avalonia, I don't think there are any downsides to disabling this. When it's disabled, `ForceDpiAware.GetWindowScaleFactor` always returns 1.

src/Ryujinx.Ava/Program.cs

@@ -100,8 +100,6 @@ namespace Ryujinx.Ava
 
             ReloadConfig();
 
-            ForceDpiAware.Windows();
-
             WindowScaleFactor = ForceDpiAware.GetWindowScaleFactor();
 
             // Logging system information.