Upgrade to mongoose 7 (#14971)

* remove some unused dependencies

* update mongoose version

* make common tests pass

* Make unit tests pass

* make api v3 integration tests pass

* fix lint issues

* fix issue with package-lock

* fix(lint): we don't need no .js

* fix(lint): update to latest config-habitrpg

* chore(npm): update package locks

* fix(test): replace deprecated fn

* chore(package): update eslint-habitrpg again

* fix(lint): server linting

* fix(lint): client linting

* fix(client): correct mangled common imports

* chore(npm): update package-locks

* fix(lint): punctuation, module

---------

Co-authored-by: SabreCat <sabrecat@gmail.com>
Co-authored-by: SabreCat <sabe@habitica.com>

test/api/v4/tasks/POST-tasks-bulk-score.test.js

@@ -103,7 +103,7 @@ describe('POST /tasks/bulk-score', () => {
 
         const initialLvl = user.stats.lvl;
 
-        await user.update({
+        await user.updateOne({
           'stats.exp': 3000,
         });
         const task = await user.post('/tasks/user', {
@@ -160,7 +160,7 @@ describe('POST /tasks/bulk-score', () => {
         type: 'habit',
       });
 
-      await user.update({
+      await user.updateOne({
         'party.quest.key': 'gryphon',
       });