Follow XDG MIME Applications specification

[MyFedora]

Respect the default inode/directory application as a file browser #44

[novoid]

While some people might not even want the default tool to be used with filetags, I think that this is a good idea to implement.

At the moment, I don't know how to do that but I'll keep it in the pipeline.

Thanks for the suggestion!

[MyFedora]

Perhaps I'm missing something here, but it looks like most applications run xdg-open directly, including Chrome, Firefox, etc. For sure is a simple solution, but it feels unnecessarily dangerous. You can parse the mime types yourselves, but nobody appears to do that for some reason. Maybe desktop environments have a good reason to cook their own special xdg-open drop-in replacement, such as kde-open for KDE Plasma. Needs further research.

[ilmc888]

I think xdg-open would be the standard and well-accepted solution for this.