Fix scene scale

[ASalavei]

On some devices, iOS uses a canvas larger than the physical screen resolution of the device to perform rendering operations. The scale factor between points and canvas pixels is represented by UIScreen.scale.
UIScreen.nativeScale is used to represent the scale factor between points and physical screen pixels. The nativeScale also represents how iOS compresses the canvas image to fit the real device screen.
Considering these factors, the DP should represent canvas pixels (not physical device pixels) to match the native iOS canvas density.

Fixes - Scene scale

Fixes: https://youtrack.jetbrains.com/issue/CMP-6690

Release Notes

Fixes - iOS

• (prerelease fix) Fix "White bars on sides on some devices"

[igordmn]

Please, provide more information, plus Release notes

[igordmn]

Added forgotten "### Fixes - iOS"

[igordmn]

(prerelease fix) Fix compose scene scale to match iOS natural screen scale.

changed to

(prerelease fix) Fix "White bars on sides on some devices".

due JetBrains/compose-multiplatform#5142 (comment)