const schema = Yup.object().shape({
mail: Yup.string()
.trim()
.matches(emailRegexp, "Email is not properly formatted")
.required("Email is not properly formatted"),
password: Yup.string().min(
8,
"Password shall be at least 8 characters long",
),
confirmPassword: Yup.string().oneOf(
[Yup.ref("password"), null],
"Passwords must match",
),
});