scroll up button

Is your feature request related to a problem? Please describe.
instead of scrolling all the way up ,adding a button that would scroll to directly navbar when someone reaches end of page.

Describe the solution you'd like
a scroll up button

No file or test is named in the issue. Start by locating the page layout, navbar, and end-of-page view in the React/TypeScript application; then determine how the requested control should reach the navbar. Done means a visible scroll-up button lets users return directly to the navbar from the end of the page.

Written by the indexing model from the issue text.