Change the breakpoint of the Astra theme tablet view

hhdev-change-astra-theme-header-breakpoint.php

/**
 * Change the breakpoint of the Astra tablet view
 *
 * @return int Screen width when the header should change to the mobile header.
 */
function hhdev_change_header_breakpoint() {
 return 1174; // change as you see fit
};

add_filter( 'astra_tablet_breakpoint', 'hhdev_change_header_breakpoint' );