Change email & email verification

[lebaaar]

Change email

• If user is signed in with Email and password, support changing email in settings.
• If user is signed in with SSO (Google), just show their email as text or in a disabled input.
• Note that users can have both Google and email sign in!

Email verification

Users need to verify email address:

• Fix email template, make it similar to the password reset one (already our custom template)
• Confirm email address link is sent when creating a new account. Only applies to email+password sign in options, automatically sets as verified if signing in with Google
• New field emailVerified in user table
• Show warning icon if email is not verified (in settings, next to email icon). Support resend email option.