WIP: Improve User model performances (#10832)

* wip: define items as mixed objects

* add default owned gear

* mark modified

* more mark modified

* more mark modified

* more mark modified

* more mark modified

* fix common tests

* fix common tests

* update mongoose

* add itemsUtils

* use new util function in hall controller

* add tests for items utils

* update website/server to mark all items as modified

* start updating common code

* update login incentives

* update unlock

* remove changes to package-lock.json

* remove changes to package.json

website/server/models/user/hooks.js

@@ -125,6 +125,8 @@ function _setUpNewUser (user) {
   let iterableFlags = user.flags.toObject();
 
   user.items.quests.dustbunnies = 1;
+  user.markModified('items.quests');
+
   user.purchased.background.violet = true;
   user.preferences.background = 'violet';
 
@@ -217,6 +219,7 @@ schema.pre('save', true, function preSaveUser (next, done) {
     // automatically granted an item during a certain time period:
     // if (!this.items.pets['JackOLantern-Base'] && moment().isBefore('2014-11-01'))
     // this.items.pets['JackOLantern-Base'] = 5;
+    // this.markModified('items.pets');
   }
 
   // Filter notifications, remove unvalid and not necessary, handle the ones that have special requirements