Support line numbering for multi-file printing

[kuainx]

I right-click the folder in Explorer in vsc and click the Print button, and Line Numbers doesn't show.
I tried to set Print: Line Numbers with on or inherit, it can control the single file line numbers, but can't work with folder.
thank you

[PeterWone]

Line numbering is not currently supported when multiple files are merge into a single print job.

[PeterWone]

Just after moving this to the Ideas discussion it occurred to me how to implement it easily - and it works. Support for line numbering of source code files in multi-file print jobs will appear in the next release. Be aware that plain text files (*.txt) are not treated as source code and will not be numbered.

[kuainx]

Thanks for your work! :)