new folders are created as folders instead of files

[Simplenuity]

After adding a new Local Folders account creating folders in that account can't be used.

Steps to reproduce:

• Account settings: create a new Local Folders account

• in the folder pane create a new folder in the just added Local Folders account

• do not restart Thunderbird/Betterbird!

• try to copy/move a message to that new folder (won't succeed without error message) or try to use this folder as Archives folder (the attempt to archive messages will cause an error message)

Reason: In the Local Directory the new folder hasn't been created as empty file but as actual folder

Workaround: After adding a newLocal Folders account restart Thunderbird/Betterbird. Then new folders will be created correctly.

OS: Ubuntu 18.04 Betterbird: 115.6.1-bb22 (64-bit) LocalFolder: 4.0.0

[Simplenuity]

sorry, issue already addressed in #62 closing as duplicate