Fix unit tests

lib/block-supports/layout.php

@@ -53,7 +53,7 @@ function gutenberg_get_layout_style( $selector, $layout, $padding, $has_block_ga
 
 		$style = '';
 		if ( $content_size || $wide_size ) {
-			$style  = "$selector {";
+			$style = "$selector {";
 			// Using important here to override the inline padding that could be potentially
 			// applied using the custom padding control before the layout inheritance is applied.
 			$style .= sprintf(

test/integration/fixtures/blocks/core__navigation__deprecated.serialized.html

@@ -1,3 +1,3 @@
-<!-- wp:navigation {"style":{"typography":{"textTransform":"lowercase","textDecoration":"line-through","fontStyle":"italic","fontWeight":"100"}},"layout":{"type":"flex","setCascadingProperties":"true","orientation":"horizontal"}} -->
+<!-- wp:navigation {"layout":{"type":"flex","setCascadingProperties":"true","orientation":"horizontal"},"style":{"typography":{"textTransform":"lowercase","textDecoration":"line-through","fontStyle":"italic","fontWeight":"100"}}} -->
 <!-- wp:navigation-link {"label":"WordPress","url":"https://www.wordpress.org/"} /-->
 <!-- /wp:navigation -->