magicMoveCopy and codeCopy work only in the global front matter

Describe the bug

Configs like magicMoveCopy or codeCopy can't be set for a single slide. The only way is to use pointer-events-none.

Minimal reproduction

Steps to reproduce the behavior:

Create regular code block:

---
title: Test
---

Slide 1

---
magicMoveCopy: false
codeCopy: false
---

```txt
Some text
```

It's still has copy button

Environment

• Slidev version: v52.16.0
• Browser: Chrome
• OS: MacOS