feat: allow survey cookie to be used for login (#277)

Refactored register survey cookie to be used for login survey as well.

VAN-462

src/data/utils/cookies.js

@@ -0,0 +1,14 @@
+import Cookies from 'universal-cookie';
+import { getConfig } from '@edx/frontend-platform';
+
+export default function setSurveyCookie(surveyType) {
+  const cookieName = getConfig().USER_SURVEY_COOKIE_NAME;
+  if (cookieName) {
+    const cookies = new Cookies();
+    const signupTimestamp = (new Date()).getTime();
+    // set expiry to exactly 24 hours from now
+    const cookieExpiry = new Date(signupTimestamp + 1 * 864e5);
+    const options = { domain: getConfig().COOKIE_DOMAIN, expires: cookieExpiry, path: '/' };
+    cookies.set(cookieName, surveyType, options);
+  }
+}

src/data/utils/index.js

@@ -8,3 +8,4 @@ export {
   windowScrollTo,
 } from './dataUtils';
 export { default as AsyncActionType } from './reduxUtils';
+export { default as setSurveyCookie } from './cookies';