Fixed default email recipients when visibility is members or paid

no issue

- since we reverted the post visibility changes, the visibility filter passed to `<GhMembersSegmentSelect>` was passing through `'members'` or `'paid'` which aren't known values

ghost/admin/app/components/gh-publishmenu.js

@@ -147,6 +147,14 @@ export default Component.extend({
                 return 'status:free,status:-free';
             }
 
+            if (this.post.visibility === 'members') {
+                return 'status:free,status:-free';
+            }
+
+            if (this.post.visibility === 'paid') {
+                return 'status:-free';
+            }
+
             return this.post.visibility;
         }