Redirection Screen Should Match theme

[Michael13435]

Problem

Redirection screen that directs to jupyter is always white, regardless of system, browser, or jupyter theme

Proposed Solution

Jupyter's redirection screen should preferably match the browser, or the theme chosen for Jupyter if the former is not possible

Additional context

[danyeaw]

Hi @Michael13435, thanks for submitting this enhancement request. Would you be interested in contributing to this?