Signin/Register page with return url

[marwie]

What problem did you meet?

Users navigating to the logto signin/signup page do currently not have a way to navigate back to the previous page without using the browser return back navigation

Describe what you'd like Logto to have

It would be great to be able to pass in a return url to the sign-in/register flow call to the logto client that then appears as a back link on the sign in page (or alternatively is the page that can be opened when clicking the logo).