chore: minor editorconfig update

[United600]

Some minor updates and, adds the dotnet_sort_system_directives_first = true and csharp_indent_case_contents_when_block = false configs.

[huynhsontung]

Setting dotnet_sort_system_directives_first = true now may make a lot of files need to be reformatted.

[United600]

Setting dotnet_sort_system_directives_first = true now may make a lot of files need to be reformatted.

True, if not almost all. I saw that it was the set on the runtime repository and that it is recommended.

[huynhsontung]

The default value for this was true as well. Not sure how it was set to false. https://learn.microsoft.com/en-us/dotnet/fundamentals/code-analysis/style-rules/dotnet-formatting-options#dotnet_sort_system_directives_first

[United600]

The default value for this was true as well. Not sure how it was set to false. https://learn.microsoft.com/en-us/dotnet/fundamentals/code-analysis/style-rules/dotnet-formatting-options#dotnet_sort_system_directives_first

Maybe it's a relatively new setting that it isn't automatically applied on some projects (like Net Native)?