Update pages blueprints to add the page preview in the markdown editor with the current admin changes

system/blueprints/pages/default.yaml

@@ -29,6 +29,7 @@ form:
 
             content:
                 type: markdown
+                showPreview: true
                 validate:
                   type: textarea
 

system/blueprints/pages/modular_raw.yaml

@@ -25,6 +25,7 @@ form:
 
             content:
               type: markdown
+              showPreview: true
 
             uploads:
               type: pagemedia

system/blueprints/pages/raw.yaml

@@ -25,6 +25,7 @@ form:
 
             content:
               type: markdown
+              showPreview: true
 
             uploads:
               type: pagemedia