Migrate project to .net 8

[codingonHP]

Migrating from .NET Standard to .NET 8.0 provides multiple benefits:

• Long-term support (LTS): .NET 8 is the latest LTS release, ensuring updates and security patches.
• Performance improvements: Significant runtime and JIT optimizations make apps faster and more efficient.
• Modern APIs: Access to the full set of modern .NET APIs not available in .NET Standard.
• Active ecosystem: Libraries and tooling are focused on current .NET versions, while .NET Standard is in maintenance mode.
• Simpler development: Unifies the framework target, reducing compatibility shims and legacy constraints.