minor #1464 [Site] Using URL binding on live components demo (weaverryan)

This PR was merged into the 2.x branch.

Discussion
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[Site] Using URL binding on live components demo

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Issues        | None
| License       | MIT

Easy win - on https://ux.symfony.com/live-component, as you search in the demo, the URL will now update with the search query. Thanks to that great new feature in 2.14 🔥

Cheers!

Commits
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dfe2ceb [Site] Using URL binding on live components demo

Author: weaverryan