Converted the project file to the modern SDK-style format, targeting .NET 8.0 instead of .NET Framework 4.8. Replaced explicit assembly references and manual NuGet package management with <PackageReference> elements for all dependencies. Removed legacy MSBuild properties, imports, and targets, simplifying the project structure. Updated build events and ensured content files are copied as needed. This modernization improves maintainability and compatibility with current .NET tooling.
