Problem: filetype: SLNX files are not recognized Solution: detect '*.slnx' files as xml filetype (Gustav Eikaas) References: https://blog.ndepend.com/slnx-the-new-net-solution-xml-file-format/ https://blog.jetbrains.com/dotnet/2024/10/04/support-for-slnx-solution-files/ closes: #16334 Signed-off-by: GustavEikaas <gustav.eikaas@gmail.com> Signed-off-by: Christian Brabandt <cb@256bit.org>