[BUG] WebDAV treat folder as file for both HTTP & HTTPS

[scruel]

Checks

• I have read the FAQ section, searched the open issues, and still think this is a new bug.

Describe the bug you encountered:

With Synology WebDAV, all folders become files, and I can not enter the folder, clicking the item will let keepass2android try to open a "folder file".

Describe what you expected to happen:

Able to enter the folder, rather than treat folder as file.

What version of Keepass2Android are you using?

1.10-pre

Which version of Android are you on?

13