This will stop us repeatedly forgetting to add `novalidate` and
`autocomplete='off'` to our forms (which is how most of them are set
up).
It uses sensible defaults, based on how we most-commonly configure
forms:
- most of our forms are `post`ed (but this can be overridden)
- `autocomplete` should only be enabled where it makes sense, otherwise
it’s more annoying than useful (but this can be overriden)
- we should never be using HTML5 form validation because our own error
styles and messages are better
Service contact details are needed if the upload document permission is
enabled - this used to be a link but services can now choose to use a
link, email address or phone number. The form to add or change service
contact details now gives these options and validates the data according
to the type of contact details provided.
When validating phone numbers we can't use the existing validation
because we want to allow landlines too, so there is a basic check that
the phone number is the right length and doesn't include certain
characters.
When a platform admin user clicks on the button to add the
'upload_document' permission to a service, they should be taken to the
page to add a contact_link if the service does not already have one.
Added a page which lets users with the 'manage_service' permission change the
contact link for their service. There are no links to this page yet
since only services using document download will need to set a contact
link.
