docs(walrus-sites): Update image reference to include quilts in ws resolution diagram (#2803)

Author: DionisisLougaris

docs/content/walrus-sites/images/walrus-sites-portal-diagram-with-quilts.svg

@@ -127,7 +127,7 @@ remains unchanged.
 
 The steps below all reference the following figure:
 
-![Walrus Site resolution](./images/walrus-sites-portal-diagram.svg)
+![Walrus Site resolution](./images/walrus-sites-portal-diagram-with-quilts.svg)
 
 - **Site publishing** (step 0): The site developer publishes the Walrus Site using the
   [`site-builder`](#the-site-builder), or making use of a publisher. Assume the developer uses the