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.

apps/web/src/components/(teams)/team-billing-portal-button.tsx

@@ -0,0 +1,39 @@
+'use client';
+
+import { trpc } from '@documenso/trpc/react';
+import { Button } from '@documenso/ui/primitives/button';
+import { useToast } from '@documenso/ui/primitives/use-toast';
+
+export type TeamBillingPortalButtonProps = {
+  buttonProps?: React.ComponentProps<typeof Button>;
+  teamId: number;
+};
+
+export const TeamBillingPortalButton = ({ buttonProps, teamId }: TeamBillingPortalButtonProps) => {
+  const { toast } = useToast();
+
+  const { mutateAsync: createBillingPortal, isLoading } =
+    trpc.team.createBillingPortal.useMutation();
+
+  const handleCreatePortal = async () => {
+    try {
+      const sessionUrl = await createBillingPortal({ teamId });
+
+      window.open(sessionUrl, '_blank');
+    } catch (err) {
+      toast({
+        title: 'Something went wrong',
+        description:
+          'We are unable to proceed to the billing portal at this time. Please try again, or contact support.',
+        variant: 'destructive',
+        duration: 10000,
+      });
+    }
+  };
+
+  return (
+    <Button {...buttonProps} onClick={async () => handleCreatePortal()} loading={isLoading}>
+      Manage subscription
+    </Button>
+  );
+};