611 Signup validation (#647)

* Validate emergency contact

Require at least 3 items split by a comma.

* Changed emergency contact validation

client/src/store/SignUpForm.tsx

@@ -54,7 +54,8 @@ const actions = {
       }
 
       const validateContactSection = (invalidFields: string[]) => {
-        const { email, confirmEmail, phone_number } = getState()
+        const { email, confirmEmail, phone_number, emergency_contact } =
+          getState()
         const validRegex =
           /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/
 
@@ -67,6 +68,9 @@ const actions = {
         if (phone_number.toString().length < 6) {
           invalidFields.push("Phone Number")
         }
+        if (emergency_contact === "") {
+          invalidFields.push("Emergency Contact")
+        }
       }
 
       switch (pageToValidate) {