Make Gutenberg Editor Full Width

/* make gutenberg editor full width */
function editor_full_width_gutenberg() {
	echo '<style>
		body.gutenberg-editor-page .editor-post-title__block,
		body.gutenberg-editor-page .editor-default-block-appender,
		body.gutenberg-editor-page .editor-block-list__block {
			max-width: none !important;
		}
		.block-editor__container .wp-block {
		    max-width: none !important;
		}
	</style>';
}
add_action( 'admin_head', 'editor_full_width_gutenberg' );