[material-ui][sign-in] Support a full-stack Sign-in component

[prakhargupta1]

Summary

Add a full-stack Sign-in component to work seamlessly with modern authentication providers beyond Auth.js—including Better Auth, Supabase, Clerk, and Firebase. The UI should show the list of Oauth providers configured by the user.

A Sign-in component was explored in https://mui.com/toolpad/core/react-sign-in-page/ and the authenticated user/session state was shown in the dashboard through the https://mui.com/toolpad/core/react-account/ component.

Examples

No response

Motivation

Link this issue in https://mui.com/toolpad/core/react-sign-in-page/ to measure interest from who're landing on Toolpad Core docs to explore this use case.

Search keywords: sign-in

[ZhYGuoL]

Hey @mj12albert I am interested in working on this task!