🎩 What? Why?

Please describe your pull request.

This PR fix an error when editing from admin an Initiative title and description.

It's well described at #5911 :

Create an initiative
Go edit on the admin side by deleting what's in the title and description fields
Update
See that the initiative is now empty and the form was OK validating this.

Thanks @virgile-dev for reporting this one!

I'm not sure if we should add a spec for this one, as there are lots of places where it's used translatable_presence and it seems like it only slipped in this form.

📌 Related Issues

Link your PR to an issue

• Fixes On the admin side it's possible to delete title and description of my initiative and leave it empty #5911

Testing

Describe the best way to test or validate your PR.

1. Create an initiative
2. Go edit on the admin side by deleting what's in the title and description fields
3. Update
4. See that the initiative is now gives an error.

📋 Checklist

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• ✔️ DO add CHANGELOG upgrade notes if required.
• ✔️ DO add to GraphQL API if there are new public fields.
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• ❌AVOID breaking the continuous integration build.
• ❌AVOID making significant changes to the overall architecture.

📷 Screenshots

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Before

After

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