Currently, we show an error on forms and input when we expect user input, but they haven't had any chance to input something at all yet (e.g. the email input field in the "Add new Alert" modal).
This is considered a UX anti-pattern, as it implies the user did something wrong when they didn't.
We should simply disable the submitting button and enable it once we have valid input.
Not part of this ticket:
As a future option, we could:
- mark mandatory fields
- give positive feedback on valid input values where we expect a specific input format.
These need additional work and we should verify that we actually need these beforehand.