Block Editor: Package updates for WordPress 5.8 beta 1 (batch2).

This includes the following fixes:

 - Fix inspector opening when clicking outside the widget areas
 - Assume light theme when a transparent background is used
 - Make Post blocks non editable inside Query block
 - Rename QueryLoop to PostTemplate block

Props ntsekouras.
See #52991.

Built from https://develop.svn.wordpress.org/trunk@51101


git-svn-id: http://core.svn.wordpress.org/trunk@50710 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/blocks/query/block.json

@@ -1,7 +1,7 @@
 {
 	"apiVersion": 2,
 	"name": "core/query",
-	"title": "Query",
+	"title": "Query Loop",
 	"category": "design",
 	"description": "Displays a list of posts as a result of a query.",
 	"textdomain": "default",