Function copyTextToClipboard

copyTextToClipboard(text): Promise<void>
Copies the provided text to the clipboard using the Clipboard API.

If the Clipboard API is not available or fails, it falls back and creates a new textarea element, sets its value to the text to be copied, selects it, and then uses document.execCommand('copy') to copy the text.
Parameters
- text: string
  
  The text to be copied to the clipboard.
Returns Promise<void>
Example
```
ix.api.text.copyTextToClipboard("Hello, clipboard!");
```