only store necessary data for social login (continuation of 10352) (#10395)

* feat(gdpr) only store necessary data for social login

* feat(gdpr) also store email for social users

* fix(social auth): store emails array instead of single email

* fix(emails): do not get name from old facebook info

* add migration to remove extra data from social profiles

* update migration description

* fix tests

* fix typo in migration file

website/server/controllers/api-v3/auth.js

@@ -327,7 +327,13 @@ api.loginSocial = {
     } else { // Create new user
       user = {
         auth: {
-          [network]: profile,
+          [network]: {
+            id: profile.id,
+            emails: profile.emails,
+          },
+        },
+        profile: {
+          name: profile.displayName || profile.name || profile.username,
         },
         preferences: {
           language: req.language,