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/header/notifications/worldBoss.vue

@@ -178,12 +178,12 @@ import sword from '@/assets/svg/sword.svg';
 import { worldStateMixin } from '@/mixins/worldState';
 
 export default {
-  mixins: [
-    worldStateMixin,
-  ],
   components: {
     BaseNotification,
   },
+  mixins: [
+    worldStateMixin,
+  ],
   data () {
     const questData = quests.quests.dysheartener;