Update target frameworks, package versions, and README
- Updated target frameworks to net9-windows and AcrylicUI package to 1.0.2 across multiple projects.
- Enhanced AcrylicUI project to support net7-windows, net8-windows, and net9-windows.
- Refined several properties with DesignerSerializationVisibility attribute for better design-time support.
- Improved README.md for clarity, structure, and accessibility, adding new sections for key features, available components, docking framework, getting started, project status, license, support, and contributing.
- Change nuget publish method
- Bump version
Full Changelog: v1.0.1...v1.0.6