Fix frontend: evita que ingrese caracteres especial y espacios en el email

related #104 (closed)

frontend/src/components/EmailForm.js

@@ -210,7 +210,7 @@ export default function EmailForm(props) {
                 rules={{
                   required: true,
                   minLength: 2,
-                  pattern: { value: /^[^$@%&|<>#]*$/ },
+                  pattern: { value: /^[A-Z0-9a-z._-]{2,64}$/i},
                 }}
                 name="email"
                 defaultValue=""