Renders the email carrying a password reset link. requestPasswordReset
(password-reset-service.ts) sends it, in the instance's style and
language: whoever asks isn't signed in, so their own settings don't apply.
f
renderPasswordResetEmail(): RenderedEmail
username: string,
resetUrl: string,
hours: number
Returns the reset email of username, whose button opens resetUrl. The
link stays usable for hours, which the email states.
Usage
import * as mod from "api/mail/password-reset.ts";