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/app/(dashboard)/settings/teams/accept-team-invitation-button.tsx

@@ -0,0 +1,45 @@
+'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 AcceptTeamInvitationButtonProps = {
+  teamId: number;
+};
+
+export const AcceptTeamInvitationButton = ({ teamId }: AcceptTeamInvitationButtonProps) => {
+  const { toast } = useToast();
+
+  const {
+    mutateAsync: acceptTeamInvitation,
+    isLoading,
+    isSuccess,
+  } = trpc.team.acceptTeamInvitation.useMutation({
+    onSuccess: () => {
+      toast({
+        title: 'Success',
+        description: 'Accepted team invitation',
+        duration: 5000,
+      });
+    },
+    onError: () => {
+      toast({
+        title: 'Something went wrong',
+        variant: 'destructive',
+        duration: 10000,
+        description: 'Unable to join this team at this time.',
+      });
+    },
+  });
+
+  return (
+    <Button
+      onClick={async () => acceptTeamInvitation({ teamId })}
+      loading={isLoading}
+      disabled={isLoading || isSuccess}
+    >
+      Accept
+    </Button>
+  );
+};