Fixed an issue that was causing the app icon to render with a
'plated' background color in the taskbar and other areas of Windows.
Updated all app icons in Microsoft Store package to match Microsoft's
design recommendations.
Added multiple scales for app icons for high resolution displays.
Added high contrast app icons.
Reviewed By: pablovazquez, jmonteath
Maniphest Tasks: T79356
Differential Revision: https://developer.blender.org/D9681
