Removing folder removes all folders below it

[grrrrr]

The logic in how folders are removed from the scanning directories section might be a bit off.

Issue

If you remove the top most folder in a list it removes everything below it but if you remove the bottom most folder it only removes that one folder

eg.

folder_1 X
folder_2 X
folder_3 X
folder_4 X

Select the X by folder 1 and folder 2, 3 and 4 also get removed

Select the X by folder 3 and folder 3 and 4 get removed

Select the X by folder 4 and only folder 4 gets removed.

Expected results

Clicking the X to remove a folder only removes that particular folder from the list