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

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

website/common/script/ops/scoreTask.js

@@ -249,7 +249,7 @@ export default function scoreTask (options = {}, req = {}, analytics) {
   // Thanks to open group tasks, userId is not guaranteed. Don't allow scoring inaccessible tasks
   if (task.userId && task.userId !== user._id) {
     throw new BadRequest('Cannot score task belonging to another user.');
-  } else if (task.group.id && user.guilds.indexOf(task.group.id) === -1
+  } else if (task.group && task.group.id && user.guilds.indexOf(task.group.id) === -1
     && user.party._id !== task.group.id) {
     throw new BadRequest('Cannot score task belonging to another user.');
   }