Player is blurry when using Wayland with a HiDPI display

Reproduction steps:
1. Create a new 3D project
2. Build the Player
3. Launch the Player using Wayland Session and a HiDPI display

Expected results: Player displays crisp and clear graphics on HiDPI screens, correctly handling the scaling factor set by the user and respecting the SDL_WINDOW_ALLOW_HIGHDPI flag
Actual results: Player appears blurry on HiDPI screens with 2x scaling, indicating a lack of proper scaling management and ignoring the SDL_WINDOW_ALLOW_HIGHDPI flag.

Reproduced with: 6000.0.31f1, 6000.1.0a8
Couldn’t test with: 2021.3.47f1, 2022.3.54f1 (Wayland is supported only from Unity 6)

Reproduced on: Ubuntu 24.04
Not reproduced on: no other environment tested