Component: Stepper - missing separator in steps

[szlezakbartosz]

Describe the bug

The step separator is missing between steps if the steps are inside a for loop.
Works fine if the steps are defined in the template explicitly.

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

No response

Reproducer

https://stackblitz.com/edit/stackblitz-starters-1wcqjgeq

Environment

Windows 10

Angular version

19.0.0

PrimeNG version

v19

Node version

No response

Browser(s)

No response

Steps to reproduce the behavior

1. Make array of objects as a step model in the .ts file,
2. Create the stepper in the template and iterate through the steps array creating the tags
3. No step separators created.

Expected behavior

Step separators should be created regardless of how the way the steps are created in the template.