Changes in v5.9

### Changed
- Fixed the additional files to include window layout on highDPI screens.
- Fix the corner spinner popup showing on a different window than the main IDE window when a tool window was undocked or floating.
- Fixed an issue that could cause the engine to fail to resolve assemblies in the GAC on some systems when running on Rider.
- Fixed configuration window top pane size set incorrectly, causing issues with scrolling.
- Prevent an unnecessary build when an editor is opened under Rider.
- Fixed a High DPI rendering issue on the Tests Window with a setup with multi monitors where none of the monitors have the same scaling and have a scaling larger than 100%.