Follow up co-sign ticket

[SilviaAmAm]

Thema / Theme

Frontend

Omschrijving / Description

• [ ] Make the email sent to the co-signer configurable in the admin config. Make sure the email contains the form/submission code and the number of days its possible to fill in. (#3807)
• [ ] Sent reminder after configurable Y days (Y < X) to the co-signer.
• [ ] Send email to main person/co-signer if it's too late to cosign
• [x] Following this discussion: https://github.com/open-formulieren/open-forms/pull/3085#discussion_r1206547012 remove the try/except clauses around the send email
• [x] Use json path query to get form definitions: https://github.com/open-formulieren/open-forms/pull/3085#discussion_r1206543366
• [ ] After cleaning up the old component, make the cosign data into an AuthInfoCosign model with an FK to the submission

Added value / Toegevoegde waarde

No response

Aanvullende opmerkingen / Additional context

No response