When trying to create a new automation based on a scriptable that has "force_triggerable" enable, it would break because of a typo in the code.
This fixes the typo and add a spec to ensure this code path is tested.
A previous refactor has prevented errors to show correctly. The guilt of the issue is that we were not calling the error variable correctly in the templates.
This commit also adds a spec for this case, and removes the need for `I18n.backend.store_translations` in specs so we don't have to write too much boilerplate each time we write a spec.
