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/v3/integration/tasks/DELETE-tasks_id.test.js

@@ -86,7 +86,7 @@ describe('DELETE /tasks/:id', () => {
     it('does not send task activity webhooks if task is not user owned', async () => {
       const uuid = generateUUID();
 
-      await user.update({
+      await user.updateOne({
         balance: 10,
       });
       const guild = await generateGroup(user);