Prerequisites to removing Facebook authentication (#13683)

* Don't sign in user when trying to connect a social account that was already created

* Log social users into matching local auth accounts

If the social account has an email that already exists as a local user, instead of creating a new account log them into their account and add the social auth to the account

* If possible set local authentication email for social users

* Allow password reset emails to be sent to social login users

* lint fixes

* Fix issues and tests

* fix tests

* Fix lint error.

website/client/src/components/snackbars/notifications.vue

@@ -81,12 +81,12 @@ const DELAY_DELETE_AND_NEW = 60;
 const DELAY_FILLING_ENTRIES = 240;
 
 export default {
-  mixins: [
-    worldStateMixin,
-  ],
   components: {
     notification,
   },
+  mixins: [
+    worldStateMixin,
+  ],
   props: {
     preventQueue: {
       type: Boolean,