Lineup: Fix header alignment and translate functions (#7292)

lineup/parts/header.html

@@ -1,7 +1,7 @@
-<!-- wp:group {"style":{"spacing":{"padding":{"top":"0","right":"var:preset|spacing|50","bottom":"var:preset|spacing|50","left":"var:preset|spacing|50"}}},"layout":{"type":"constrained"}} -->
+<!-- wp:group {"style":{"spacing":{"padding":{"top":"0","right":"var:preset|spacing|50","bottom":"var:preset|spacing|50","left":"var:preset|spacing|50"}}},"layout":{"type":"default"}} -->
 <div class="wp-block-group" style="padding-top:0;padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50)">
-	<!-- wp:group {"align":"full","style":{"spacing":{"blockGap":"var:preset|spacing|40"}},"layout":{"type":"flex","justifyContent":"space-between"}} -->
-	<div class="wp-block-group alignfull">
+	<!-- wp:group {"style":{"spacing":{"blockGap":"var:preset|spacing|40"}},"layout":{"type":"flex","justifyContent":"space-between"}} -->
+	<div class="wp-block-group">
 		<!-- wp:site-title /-->
 
 		<!-- wp:navigation {"overlayBackgroundColor":"base","overlayTextColor":"contrast","layout":{"type":"flex","setCascadingProperties":true,"justifyContent":"right","orientation":"horizontal"},"style":{"spacing":{"margin":{"top":"0"},"blockGap":"var:preset|spacing|40"}}} /-->

lineup/patterns/404.php

@@ -5,7 +5,6 @@
  * Inserter: no
  */
 ?>
-
 <!-- wp:heading {"level":1,"anchor":"nothing-found"} -->
-<h1 class="wp-block-heading" id="nothing-found"><?php echo esc_html_x( 'Nothing found. Search?', 'lineup' ); ?></h1>
+<h1 class="wp-block-heading" id="nothing-found"><?php echo esc_html__( 'Nothing found. Search?', 'lineup' ); ?></h1>
 <!-- /wp:heading -->

lineup/patterns/hidden-no-results-content.php

@@ -6,5 +6,5 @@
  */
 ?>
 <!-- wp:paragraph -->
-<p><?php echo esc_html_x( 'Nothing found.', 'lineup' ); ?></p>
+<p><?php echo esc_html__( 'Nothing found.', 'lineup' ); ?></p>
 <!-- /wp:paragraph -->