bug(list): list item with activated state miss background color

### Is this a regression?

- [ ] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

_No response_

### Description

Hi there,
When using `mat-nav-list` with items that have an activated state, the primary color is applied on the activated item but the background color is missing.

### Reproduction

https://stackblitz.com/edit/angular-aovyvr

### Expected Behavior

Having same behavior than : https://material-components.github.io/material-components-web-catalog/#/component/list

(Scroll to "List with activated item" section and click on any list item)

### Actual Behavior

Only the font color is applied

### Environment

- Angular: 15.2.6
- CDK/Material: 15.2.6
- Browser(s): Chrome 112
- Operating System (e.g. Windows, macOS, Ubuntu): Any

Comienza con la reproducción enlazada en StackBlitz e inspecciona el estilo del estado activado de mat-nav-list. Compáralo con el ejemplo enlazado de listas de Material Components y verifica después que un elemento activado muestre tanto el color de fondo esperado como el color de texto primario.

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