This change alters the behavior of the sidebar "Snippets" menu such that
the snippet index view doesn't include snippet models that have been
configured with their own menu item.
Currently, the "Snippets" menu doesn't appear if all snippet models have
their own menu items; however, if some models do and some don't, the
snippets index view lists all of them, causing some duplication in the
UI which could be confusing for editors.
This commit changes this behavior so that "Snippets" is only used to
edit those snippet models that aren't editable elsewhere.
A new setting (WAGTAILSNIPPETS_MENU_SHOW_ALL) has been added to always
show the snippets menu and all snippets models. This setting will allow
for continuation of the current behavior for those users that desire it.
Closes issue 11340.
- Changed all British spellings to American spellings, in the Customizing admin templates section of the docs
- Transferred all British spellings in the usage guide and advanced topics section to American spellings
- Update a series of other pages to use the spelling cutomize in the file name
Implemented all feedbacks on the usage guide and advanced topics section