Seedlet blocks: replace paragraph with Site Tagline block in header

seedlet-blocks/block-template-parts/header.html

@@ -8,9 +8,7 @@
 
 <!-- wp:site-title {"align":"center"} /-->
 
-<!-- wp:paragraph {"align":"center","fontSize":"small"} -->
-<p class="has-text-align-center has-small-font-size">is a curious botanist</p>
-<!-- /wp:paragraph -->
+<!-- wp:site-tagline {"align":"center","fontSize":"small"} /-->
 
 <!-- wp:navigation {"itemsJustification":"center"} -->
 <!-- wp:navigation-link {"label":"Home","url":"#"} /-->
@@ -18,4 +16,4 @@
 
 <!-- wp:spacer {"height":60} -->
 <div style="height:60px" aria-hidden="true" class="wp-block-spacer"></div>
-<!-- /wp:spacer -->
+<!-- /wp:spacer -->