[Bug]: `TypeError: Error can't access property "stateMachines", this.animator is undefined`

### Describe the bug

The wallet breaks with error `TypeError: Error can't access property "stateMachines", this.animator is undefined`.
It might be browser specific, as so far it has only been seen in Firefox browser, not Chrome

### Expected behavior

No error, no breakage

### Screenshots/Recordings

### Steps to reproduce

So far, seen in ci once https://github.com/MetaMask/metamask-extension/actions/runs/30858938547/job/91837635929
and also in Sentry https://metamask.sentry.io/issues/7597601108/?project=273505&query=is%3Aunresolved%20animator%20is%20undefined&referrer=issue-stream&sort=recommended

### Error messages or log output

```shell

```

### Where was this bug found?

Live version (from official store)

### Version

13.37.0

### Build type

_No response_

### Browser

Firefox

### Operating system

Linux

### Hardware wallet

_No response_

### Additional context

_No response_

### Severity

_No response_

Start by reviewing the linked CI job and Sentry issue, then trace where the wallet accesses `stateMachines` through `this.animator`. Compare the Firefox and Linux context with successful Chrome runs if available. Done means the wallet no longer breaks with this error in the affected Firefox scenario.

Written by the indexing model from the issue text.