improve email: add link to the resource (admin)

[antopalidi]

[microstudi]

Hi @antopalidi
this is ok, but I'd like to improve it a little.

I think this is a good oportunity to improve the ResourceLocatorPresenter so it returns also a admin_url.
This should be as easy as adding a new method to it:

    def admin_url(options = {})
      admin_member_route("url", options.merge(host: root_resource.organization.host))
    end

    def admin_member_route(route_type, options)
      options.merge!(options_for_polymorphic)

      admin_route_proxy.send("#{member_route_name}_#{route_type}", target, options)
    end

In addition, check the resource_locator_presenter_spec.rb to add a test for this method.

See the comments for additional info.

Thanks!

[microstudi]

Great!
The only thing missing is to test for a reported resource that has no admin link. Check the notes