I like the idea, and the inclusion of a password strength meter is a nice touch.
However, I can not in good conscience recommend anyone use this tool. It does not store passwords in an encrypted format, so anyone with access to the file system can read them out. Furthermore, the source code is not available and not audited. On the plus side, it stores your passwords offline.
Overall, I do not think this is a bad application. It is impressive you could create something like this for this jam. It’s just that security critical software, like password managers, is an extremely poor choice of a utility to create during a game jam. If you are interested in making a password generation UI, consider using a readily available open-source password manager (such as KeepassXC) as a backend.
I am sorry if this sounds harsh, I just don’t want people to compromise their password security by using this tool.