Accessibility issue with Copy Button

[paulGeoghegan]

Describe the bug

A bug is a demonstrable problem caused by code in the library. Please provide a clear and concise description of what the bug is here.
If you are using a screen reader and encounter a Copy Button component it is unlabeled.

To Reproduce

Steps to reproduce the behavior:

1. Go to https://backers.webawesome.com/docs/components/copy-button,
2. Navigate to a copy button example using a screen reader,
3. All you will hear is button

Browser / OS

• OS: Windows
• Browser: Firefox
• Browser version: 127.0.2
• Screen Reader: NVDA