[Feature Request] Save credentials

[distek]

I had opened #8 originally whereas I should have opened this instead, so please disregard that.

It would be fantastic if we could save credentials for logins using a password manager like gnome-keyring or pass. Is there a way to go about this?

If this is already a feature, how would I go about enabling it? Whenever I open my instance of, say, protonmail, the credential fields are blank. Once I log in, I'm not presented with an option to save the credentials.

This isn't a huge deal as logging in isn't exactly a chore, but for someone who has very long passwords, this might be tedious.

Thanks for your work on this.