Integrate API for form validation

[charliemangano]

Description:

We want to have the form validation (sign in, signup, create profile, create alert) be done by an external API. It would standardize and make easier the form validation.

Done:

• Functional Requirements:
  • working integration of an external API for form validation
  • the existing functionality should stay the same but be managed by the API
• Quality Standards:
  • clean code
  • documentation
• Testing Requirements:
  • tests already implemented should still pass
  • 80% coverage

Preconditions:

Requires research to choose and integrate the external API.

Steps to Completion:

• [x] research
• [ ] integration:
  • [x] #262, #263
  • [x] #264, #265
  • [ ] #266
• [ ] testing

[charliemangano]

We will be using FormBuilder, which is a form validation library that integrates well with Jetpack Compose