Replace Vuelidate with VeeValidate

[faustbrian]

Vuelidate is quite verbose because as soon as you use some custom rules or want to change error messages end up in a situation where you have schemas, error messages and validation rules inside your components while these kinds of things would be better stored elsewhere.

VeeValidate takes a cleaner approach by letting you extend and overwrite the rules that are exposed through the validation provider and then use a Vue component to wrap the data you would want to validate. It's also leaner because it doesn't come with a million rules out of the box, we can register as little or as many as we need and overwrite existing ones with our own implementations.