Update to 0.6.21 issues

[gavdgavd]

Describe the bug/problem
Two problems updating from 0.6.20 to 0.6.21

• (minor issue) The file that you get using the "Release V0.6.21" from https://github.com/janeczku/calibre-web/releases/download/0.6.21/Calibre-Web-06-21-Setup.exe is called "Calibre-Web-06-20-Setup.exe". When you compare the size of 0.6.20 (original) and 0.6.20 (for version 0.6.21), you see that they are different. Thus, I assume it is just a small renaming problem.
• (mayor issue) After installing release 0.6.21, the original database "disappears", thus all the original configurations are gone. Reviewing the installation folder, you see that there is a new "_internal" directory where the app.db file is. If you replace this db file with a backup of the old (0.6.21) version, everything starts working correctly. I am sure this directory was not in the original 0.6.20 version, and that the app.db file under the root of the Calibra-web directory was located.

To Reproduce
Steps to reproduce the behavior:

1. Install version 0.6.21 at the top of a working version 0.6.20
2. Run the Calibre-Web application
3. The data from the 0.6.20 version is not available anymore
4. The database used by the application is now in a new "_internal" directory
5. Set a backup copy of the app.db file in the "_internal" directory, and all configurations are back

Expected behavior
To make an update from 0.6.20 to 0.6.21, everything should work correctly regarding data in the database

Environment (please complete the following information):

• OS: Windows 10
• Python version: Python 3.10.5
• Calibre-Web version: 0.6.20 to 0.6.21
• Docker container: None
• Special Hardware: None
• Browser: Vivaldi, Edge

[OzzieIsaacs]

No1 is already solved.
no2 I realized the folder during build process but I didn’t realize the consequences. I‘ll check why this happens

[OzzieIsaacs]

Starting an explanation. The changed file layout is due to an update of pyinstaller:

So nothing I changed on my side

[OzzieIsaacs]

I fixed it for the next release. The files will show up in the root folder of calibre-web

[gavdgavd]

Thanks a lot Ozzie. Looking forward to the next release.