#30 Support Syncthing

[Bradley]

https://github.com/Catfriend1/syncthing-android/issues/717
https://f-droid.org/en/packages/com.github.catfriend1.syncthingandroid/
When using Syncthing-Fork from F-Droid, you can select your shared folder from within the app to open it. If you have one of the supported file managers, it will open in that, otherwise it will suggest you download Simple File Manager from F-Droid, even if Ghost Commander is installed. I would like it if Ghost Commander would work for this instead so that I don't need multiple file managers installed.