Context menu items should match the contents of the text field from which the menu was triggered

MacOS 15.4.1

Qt Creator 16.0.2

Qt 6.10.0 (dev snapshot) / Qt 6.9.1

Steps to reproduce:

1. Open quick controls gallery example
2. Open text field page
3. Right click in the empty field

Expected: None of the options is available. More:

• not selected text in the field -> Select All available
• selected text in the field -> Copy, Cut, Delete
• copied/cuted text in the clipboard -> Paste available 

Actual: Paste, Select All options are available even if there is no text in the field (to be selected) or nothing has been copied (to paste). 

Reproducibility:  100%