Select component with filter: "No results found" entry should not be enabled or clickable

[l3d00m]

Describe the bug

When having a filter on the Select component and no results are found, the "No results found" option is enabled and clickable, which should not be the case since it does not have any action and might confuse screen readers. (I noticed in E2E playwright tests).

Pull Request Link

No response

Reason for not contributing a PR

• Lack of time
• Unsure how to implement the fix/feature
• Difficulty understanding the codebase
• Other

Other Reason

not sure if this is actually considered a bug

Reproducer

https://primeng.org/select#filter

Environment

Can be seen on PrimeNG documentation website (Filter section). See link above.

Angular version

on primeNG docs site

PrimeNG version

v19

Node version

No response

Browser(s)

No response

Steps to reproduce the behavior

1. Go to https://primeng.org/select#filter (Filter section)
2. Enter random characters until "No results found" is displayed
3. Notice that the option item with this text is enabled:
   

Expected behavior

The item should not be enabled and should not clickable or selectable with screen readers. Because it is an information text only with no click action.

[github-actions]

Due to PrimeTek's demanding roadmap for PrimeNG, this issue is available for anyone to work on. Make sure to reference this issue in your pull request. ✨ Thank you for your contribution! ✨