Add support for email+password signins

[gravitystorm]

I'd like to invite more team members, but some of them don't have github/google accounts. For other team members, they have these accounts but they are for personal, not work, reasons. In particular, they might want to keep any notification emails going to their work email, rather than whichever email they have associated with their github/google accounts.

It would be great if my team members can create an account from the invite email and sign in using that email.

[linear]

OPE-545

[mxkaske]

Hey @gravitystorm! Do you use a specific provider (like Microsoft) we could support instead? Not a big fan of email + password these days, but happy to add more OAuth providers or explore magic links if that helps your team onboard more easily.

[gravitystorm]

Do you use a specific provider (like Microsoft) we could support instead?

No, no specific auth provider in use here.

Not a big fan of email + password these days,

I appreciate that it would be great if we moved on to something else (here's looking at you, passkeys), but for now email+password is the most consistently used option among all the 3rd-party services we use. I also would hope that the "something else" options aren't restricted to everyone having to sign up to a giant tech megacorp service, before being able to use OpenStatus!