Feature request: Confirmation dialog box before the recovery process starts #708

Is your feature request related to a problem? Please describe.
Recovery of archives or individual folders from the archive: If the user is not yet familiar with Vorta, I'm sure he doesn't know exactly where Vorta will restore the files from the archive.

Example:
The user made a repository with the following source:
"/home/user"

In "/home/user" there is also the sub-folder "/documents/lists/".

Now the user has lost data in "/home/user/documents/lists/" and would like restore "/home/user/documents/lists/".

So he clicks on the "exctract" button and looks for the folder "/lists/".
He only checks "list" and not any folder before. Since I am familiar with Vorta, I know that the user has to specify "/" as target if he wants to overwrite "/home/user/documents/lists/".

But this is not a self-evident fact.
It could be that the user thinks he has to specify "/home/user/documents/lists/" as target if he wants "/lists/" to end up in "/home/user/documents/lists/". Or maybe "/home/user/documents/".

Describe the solution you'd like
As soon as the user has selected the target, Vorta should not immediately start with the recovery process. It should show a dialog field with the following information:

The content of the selected folder /lists/ will be in the folder "/home/user/documents/lists/home/user/documents/lists/" after the recovery process has finished. Do you want to continue? Yes/abort/go back