The `use_helpers` method was added in ViewComponent 3.8.0, and it's
included by default in all components since version 3.11.0.
Note we sometimes delegated the `can?` method to the controller instead
of the helpers, for no particularly reason. We're unifying that code as
well.
Currently this change is barely beneficial (if at all), but it doesn't
harm and might be useful in some cases. For instance, the `datetime`
attributes generates a date containing time zone information, which the
text shown on the screen does not, and styling dates with CSS is now
easier.
