Styled App Bar - Copy this React, Mui Component to your project

Create a react app with a navbar having menus like home, collections, about, contact. in collections make sub menus like Top wear, Bottom wear, Shoes. The navbar should be present on every page except when in dashboard. Also give link for dashboard, after clicking on dashboard the dashboard page should open. Dashboard will have a sidebar on left having some menus and when clicked on them the right side of page will open that particular menu contents.