bug(slide-toggle): no remaining focus if clicked on non active toggle

### 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

if a non focused toggle is clicked, there is no remaining focus - bad if keyboard control is used afterwards.
However if the label is clicked instead, the remaining focus works.

### Reproduction

Steps to reproduce:
1. https://material.angular.io/components/slide-toggle/overview
2. click on not focused toggle vs click on not focused label

### Expected Behavior

remaining focus should appear on click on a non focused toggle

### Actual Behavior

no remaining focus on click on a not already focused toggle

### Environment

- Angular: 15.1.1
- CDK/Material: 15.1.1
- Browser(s): all
- Operating System (e.g. Windows, macOS, Ubuntu): all

Reproduisez le comportement à l’URL de présentation de slide-toggle en comparant un clic sur un toggle qui n’a pas le focus avec un clic sur son label. Suivez la gestion du focus de slide-toggle et vérifiez qu’un clic sur un toggle qui n’a pas le focus conserve le focus clavier visible, tout en préservant le comportement existant du label.

Rédigé par le modèle d'indexation à partir du texte de l'issue.