Only enable creating new folders from folder picker if user has org roles
admin or editor.
Only render General option in folder picker if user has org roles admin
or editor.
If the selected folder is not in the options then manually create it. This
can happen in some edge cases (if an user has been given access to a
dashboard but does not have access to its parent folder)
Instead of returning all folders a user has some sort of access to,
this change creates a new end point that returns folders the user
has write access to. This new endpoint is used in the folder picker
