Reapply "Add postal code field to /fiscal-sponsorship/apply (#1185)"

This reverts commit 05ab34cbc0.

components/fiscal-sponsorship/apply/org-form.js

@@ -54,6 +54,18 @@ export default function OrganizationInfoForm({ requiredFields }) {
             ))}
         </Select>
       </Field>
+      <Field
+        name="eventPostalCode"
+        label={`ZIP code / postal code`}
+        description="If your organization runs online, please put your own postal code."
+        requiredFields={requiredFields}
+      >
+        <Input
+          name="eventPostalCode"
+          id="eventPostalCode"
+          placeholder="90069"
+        />
+      </Field>
       <Field
         name="transparent"
         label="Transparency mode"

pages/api/fiscal-sponsorship/apply.js

@@ -16,6 +16,7 @@ export default async function handler(req, res) {
         email: data.userEmail,
         name: data.eventName,
         country: getCode(data.eventLocation) || '',
+        postal_code: data.eventPostalCode || '',
         transparent: data.transparent,
       }),
       method: 'POST',
@@ -34,6 +35,7 @@ export default async function handler(req, res) {
           'Date of Birth': data.userBirthday,
           'Event Name': data.eventName,
           'Event Website': data.eventWebsite,
+          'Event Postal Code': data.eventPostalCode,
           'Tell us about your event': data.eventDescription,
           'Mailing Address': data.userAddress,
           'Address Line 1': data.addressLine1,

pages/fiscal-sponsorship/apply/index.js

@@ -23,6 +23,7 @@ export default function Apply() {
   const requiredFields = [
     'eventName',
     'eventLocation',
+    'eventPostalCode',
     'eventDescription',
     'firstName',
     'lastName',