bug(all): Strong focus indicators should only show when the user uses the keyboard to navigate

### 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

https://v12.material.angular.io/guide/theming#strong-focus-indicators

### Reproduction

reproduces in the trivial case

### Expected Behavior

According to guidance we've received from the Material Design team, focus indicators are only expected to be visible when the user has used the keyboard to focus the item

### Actual Behavior

Focus indicators are showing on click

### Environment

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

Start with the linked Strong focus indicators guide and reproduce the difference between clicking and keyboard navigation in the trivial case. Done means focus indicators appear after keyboard navigation but not after a click.

Written by the indexing model from the issue text.