[BUG] - Directories selected should not have a subdirectory added

[dhawton]

Describe the bug

When an output directory is selected by the user, it is bad UX to append a subdirectory to it and it will mess with desired organization.

To Reproduce
Steps to reproduce the behavior:
1.
2.
3.
4.

Expected behavior

If I select P:\maps\enroute, converted files should be dropped in P:\maps\enroute, not P:\maps\enroute\FE-BUDDY-GeoJSONs

Screenshots
If applicable, add screenshots to help explain your problem.

[KSanders7070]

Improvements like this will likely be included in the v3.0+ lifespan.