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>

website/client/src/app.vue

@@ -425,7 +425,8 @@ export default {
         this.$store.state.isUserLoaded = true;
         Analytics.setUser();
         Analytics.updateUser();
-        return axios.get('/api/v4/i18n/browser-script',
+        return axios.get(
+          '/api/v4/i18n/browser-script',
           {
             language: this.user.preferences.language,
             headers: {
@@ -433,7 +434,8 @@ export default {
               Pragma: 'no-cache',
               Expires: '0',
             },
-          });
+          },
+        );
       }).then(() => {
         const i18nData = window && window['habitica-i18n'];
         this.$loadLocale(i18nData);