[graphiql] Find / Find and Replace menu is still visible when dismissed

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Current Behavior

This screenshot show the find menu after closing it.

### Expected Behavior

This is how it should be displayed

### Steps To Reproduce

1. Hit `ctrl + F` to open the find menu or `ctrl + h` to open the find and replace menu
2. Click to `X` icon to close or hit `Esc`

### Environment

* GraphiQL Version: 5.2.0
* OS: Windows
* Browser: Firefox / Chrome

### Anything else?

This line of code is the issue:

https://github.com/graphql/graphiql/blob/0d9e51aa6452de1a1dee1ff1d1dae6df923f389f/packages/graphiql-react/src/style/editor.css#L29