Contact form has no validation

[Zasa-san]

Describe the bug When submiting a contact form it has no validation before submiting. If the user entered a wrongly formatted email it will return a validation error from the API.

Expected behavior Should not submit with invalid email.

Additional context Comes from https://github.com/huridocs/uwazi/issues/4901

[txau]

Contact form has server side validation. We could improve the overall user experience with front-end validation.

[Zasa-san]

Fixed