Enhancement: high dpi support

[cyn0x8]

What is your suggestion, and why should it be implemented?

support for dpi scaling:

currently the game window resolution does not match the actual window size if the display dpi is scaled beyond 100%, which leads to slightly blurry and/or pixelated visuals

you guys could probably follow the CNE implementation for this

[AbnormalPoof]

#3522 implements this.

[EliteMasterEric]

#3522 got closed as redundant so looks like this is resolved.

If CNE does something different than this, we might need to reopen this issue.