[Feature]: Automatically put book into the currently opened folder when uploading a book

[paulcsiki]

App version: 0.12.2

Is your feature request related to a problem? Please describe.
Select a certain folder and click on the Add Books button, notice that the books do get added but not automatically placed in the folder you were on.

Describe the solution you'd like
I expect that if I add books while within a folder for the books to be visible in that folder right away.

Describe alternatives you've considered
N/A

Additional context
I have thought that the upload operation has failed and have tried it again only to be presented with "Book already exists" warning.