Add custom feedback message for health risk

[cathinkaw]

User story As a data verifier I want to override the feedback sms that my data collectors get when reporting a case correctly.

Description

• Should be possible to set per health risk
• Should be possible to edit

NB: The backend part of this needs to be fixed later, since we are not sure about how the sms sending should be done from our system

https://preview.uxpin.com/edc4018168cad2c4a051b5bd84f1c986184736e9#/pages/109409461/simulate/sitemap