Add Media for Contributors

function add_theme_caps() {
 
 $trans = '1';
 if ( get_transient('update_entries' ) === $trans ) return;
 set_transient( 'update_entries', $trans, 1e5 );
 
 $role = get_role('contributor');
 $role->add_cap('upload_files');
}
add_action( 'admin_init', 'add_theme_caps');