add heading format on frontend submit

add_filter( 'jnews_frontend_submit_wp_editor_args', 'jnews_frontend_submit_heading_format_editor_args' );

if ( ! function_exists( 'jnews_frontend_submit_heading_format_editor_args' ) ) {
    /**
     * Add heading format controls to the frontend submit editor.
     *
     * @param array $args WP editor arguments.
     *
     * @return array
     */
    function jnews_frontend_submit_heading_format_editor_args( $args ) {
        $args['teeny'] = false;

        $tinymce                  = isset( $args['tinymce'] ) && is_array( $args['tinymce'] ) ? $args['tinymce'] : array();
        $tinymce['toolbar1']      = 'formatselect,bold,italic,underline,blockquote,strikethrough,bullist,numlist,alignleft,aligncenter,alignright,undo,redo,link,fullscreen';
        $tinymce['block_formats'] = 'Paragraph=p;Heading 2=h2;Heading 3=h3;Heading 4=h4;Heading 5=h5;Heading 6=h6';
        $args['tinymce']          = $tinymce;

        return $args;
    }
}