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

Start by locating the React Native screen components that contain long page content and the navbar entry point. Check the existing navigation and scrolling behavior, then verify that a scroll-up button appears at the end of the page and returns the user directly to the navbar.

Written by the indexing model from the issue text.