feat: add teams (#848)

## Description

Add support for teams which will allow users to collaborate on
documents.

Teams features allows users to:

- Create, manage and transfer teams
- Manage team members
- Manage team emails
- Manage a shared team inbox and documents

These changes do NOT include the following, which are planned for a
future release:

- Team templates
- Team API
- Search menu integration

## Testing Performed

- Added E2E tests for general team management
- Added E2E tests to validate document counts

## Checklist

- [X] I have tested these changes locally and they work as expected.
- [X] I have added/updated tests that prove the effectiveness of these
changes.
- [ ] I have updated the documentation to reflect these changes, if
applicable.
- [X] I have followed the project's coding style guidelines.

packages/lib/utils/token-verification.ts

@@ -0,0 +1,21 @@
+import type { DurationLike } from 'luxon';
+import { DateTime } from 'luxon';
+import { nanoid } from 'nanoid';
+
+/**
+ * Create a token verification object.
+ *
+ * @param expiry The date the token expires, or the duration until the token expires.
+ */
+export const createTokenVerification = (expiry: Date | DurationLike) => {
+  const expiresAt = expiry instanceof Date ? expiry : DateTime.now().plus(expiry).toJSDate();
+
+  return {
+    expiresAt,
+    token: nanoid(32),
+  };
+};
+
+export const isTokenExpired = (expiresAt: Date) => {
+  return expiresAt < new Date();
+};