[7.2.0] Angular HMR: FirebaseError: Firestore has already been started and persistence can no longer be enabled

### Version info

**Angular:** 13.2

**Firebase:** 9.6

**AngularFire:** 7.2

### How to reproduce these conditions

**Steps to set up and reproduce**

- serve Angular project with `ng serve --hmr`
- make some change in the application

### Debug output

** Errors in the JavaScript console **

`FirebaseError: Firestore has already been started and persistence can no longer be enabled. You can only enable persistence before calling any other methods on a Firestore object.`

### Expected behavior

No errors.

### Actual behavior

Project fails to run with the above error.

Might be related to #2655

Reproduce el fallo sirviendo un proyecto de Angular con `ng serve --hmr` y cambiando la aplicación. Después, sigue la inicialización de Firestore y la configuración de persistencia de AngularFire; el issue estará resuelto cuando los cambios de HMR ya no produzcan el FirebaseError.

Escrito por el modelo de indexación a partir del texto del issue.