feat: Remove edit button from grapes view as page

[AlexanderBlanchardAC]

Remove Edit button from grapes view as page as the editor can be accessed through the breadcrumbs and this option is more in keeping with the rest of Aspen.

TEST PLAN:

1. Ensure Web Builder is enabled System Administration->Modules->Web Builder.
2. Ensure that Grapes JS is enabled System Administration->System Variables-> Enable Grapes Editor
   Prior to applying patch:
3. Navigate to Web Builder->Grapes Pages and select Add new.
4. Create a page and click Open in Editor.
5. Add some content using Grapes JS.
6. Ensure you save the page.
7. Navigate back to the list of pages using the breadcrumbs at the top of the editor. Click view as page.
8. Notice that there is an "Edit Page" button on the page and that this takes you back to the gjs editor, as does the "Edit" option in the breadcrumbs.
   Apply Patch
9. Navigate back to 'View As Page' and notice that the 'Edit Page' button has been removed.
10. The 'Edit' option in the breadcrumbs still allows you to navigate back to the gjs editor for the current page.