Canonical URL remains when navigating between pages

### Current Behavior

When navigating through the SPA, the canonical found in the page `` remains.

E.g., if you visit the forum home page, then navigate to a discussion, the canonical is still the home page URL.

### Steps to Reproduce

Self-explanatory

### Expected Behavior

Canonical should be updated with a new URL

### Screenshots

_No response_

### Environment

- Flarum version: 1.5.0
- Website URL: [local]
- PHP version: 8.1.x

### Output of `php flarum info`

_No response_

### Possible Solution

_No response_

### Additional Context

_No response_