Block Canvas: Update header alignment (#7575)

block-canvas/parts/header.html

@@ -5,7 +5,7 @@
 		<!-- wp:group {"layout":{"type":"flex"}} -->
 		<div class="wp-block-group">
 			<!-- wp:site-logo {"width":64} /-->
-	
+
 			<!-- wp:group {"style":{"spacing":{"blockGap":"0px"}}} -->
 			<div class="wp-block-group">
 				<!-- wp:site-title /-->
@@ -14,8 +14,8 @@
 			<!-- /wp:group -->
 		</div>
 		<!-- /wp:group -->
-	
-		<!-- wp:navigation {"layout":{"type":"flex","setCascadingProperties":true,"justifyContent":"right","orientation":"horizontal"},"style":{"spacing":{"margin":{"top":"0"}}}} /-->
+
+		<!-- wp:navigation {"layout":{"type":"flex","setCascadingProperties":true,"justifyContent":"left","orientation":"horizontal"},"style":{"spacing":{"margin":{"top":"0"}}}} /-->
 	</div>
 	<!-- /wp:group -->
 </div>