Set default language per folder

[danielwerg]

I have my snippets structured this way:

nap
├── bash
├── c
├── go
└── javascript

I set default_language to bash since it's most common one I use. But every time I add snippet that is not for bash I need to change language for that specific snippet and it's not only tedious but I also often forget to do that.

Would be nice to have command inside nap to "Set default language for current folder"