Updated all projects to target .NET 10.0, removing support for .NET 6.0. Upgraded key dependencies, including:
- `Microsoft.Build` and `Microsoft.Build.Tasks.Core` to 18.0.2.
- `Nuke.Common` to 10.1.0.
- `System.Drawing.Common` to 10.0.1.
- `System.Text.Json` to 10.0.1.
Removed `NoWarn` configurations for .NET 6.0 in `ElectronNET.AspNet.csproj`. Reformatted the `Copy` task in `ElectronNET.Build.csproj` for readability. Updated `.pubxml` files and other project files to reflect the framework upgrade.
- Remove obsolete sample targets
- Restore and build solution (.Lean) instead of projects
- Read version from common.props, compare with latest changelog version
and fail if not equal
- Keep PostFix separate from version (AssemblyVersion may not have
a postfix), so the postfix will go into the package version and
file name as well as the informational version (visible in file
properties dialog on Windows)
- Add "ElectronNET.Core " as prefix to GitHub release names (to
disambiguate with earlier versions)
