Administration: Add missing space in theme activation notices.

Restore missing space in two admin notices during theme activation.

Props shailu25, sergeybiryukov, mukesh27, hellofromtonya.
Fixes #59501. See #57791.

git-svn-id: https://develop.svn.wordpress.org/trunk@56800 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/themes.php

@@ -271,7 +271,7 @@
 } elseif ( isset( $_GET['activated'] ) ) {
 	if ( isset( $_GET['previewed'] ) ) {
 		wp_admin_notice(
-			__( 'Settings saved and theme activated.' ) . '<a href="' . esc_url( home_url( '/' ) ) . '">' . __( 'Visit site' ) . '</a>',
+			__( 'Settings saved and theme activated.' ) . ' <a href="' . esc_url( home_url( '/' ) ) . '">' . __( 'Visit site' ) . '</a>',
 			array(
 				'id'                 => 'message2',
 				'additional_classes' => array( 'updated' ),
@@ -280,7 +280,7 @@
 		);
 	} else {
 		wp_admin_notice(
-			__( 'New theme activated.' ) . '<a href="' . esc_url( home_url( '/' ) ) . '">' . __( 'Visit site' ) . '</a>',
+			__( 'New theme activated.' ) . ' <a href="' . esc_url( home_url( '/' ) ) . '">' . __( 'Visit site' ) . '</a>',
 			array(
 				'id'                 => 'message2',
 				'additional_classes' => array( 'updated' ),