Group Set field with Collection field in docs menu

I could not immediately find which file defines the docs menu and PR, but I suggest to change the order of the items in Field Types:
Put the Set field directly under Collection field in the menu, since these 2 often go together (at least, they do in my projects).

You could also consider grouping all text field types, e.g:
- text
- slug (not sure about the slug - it is the odd one out but it's important and usually related to a text field)
- html
- redactor
- article
- textarea
- markdown