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/user/auth/POST-login-local.test.js

@@ -37,7 +37,7 @@ describe('POST /user/auth/local/login', () => {
   });
 
   it('user is blocked', async () => {
-    await user.update({ 'auth.blocked': 1 });
+    await user.updateOne({ 'auth.blocked': 1 });
     await expect(api.post(endpoint, {
       username: user.auth.local.username,
       password,
@@ -84,7 +84,7 @@ describe('POST /user/auth/local/login', () => {
     const salt = sha1MakeSalt();
     const sha1HashedPassword = sha1EncryptPassword(textPassword, salt);
 
-    await user.update({
+    await user.updateOne({
       'auth.local.hashed_password': sha1HashedPassword,
       'auth.local.passwordHashMethod': 'sha1',
       'auth.local.salt': salt,