Trial expiring soon email contains `[object Object]`

### Current Behavior

In FFC we have trial email notifications turned off as they have been delegated to Hubspot. In my local setup, I still have them enabled and just noticed the team name isn't being inserted properly:

### Expected Behavior

Email to have the team name in

### Steps To Reproduce

_No response_

### Environment

- FlowFuse version:
- Node.js version:
- npm version:
- Platform/OS:
- Browser:

### Have you provided an initial effort estimate for this issue?

I have provided an initial effort estimate