Button icon position does not switch sides when switching to RTL

[aberonni]

Describe the bug

Steps to reproduce

1. Open the button documentation
2. Use the theme switcher in the head to switch to RTL mode
3. Obseve the icons on the buttons

Expected behaviour

The icons switch from left to right

Actual behaviour

The icons remain on the left

Notes

For other components (eg TabMenu) this works as expected.

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

I think this relates to a wider issue of having to hardcode left/right based on RTL, rather than using logical attributes - see feature request here: https://github.com/orgs/primefaces/discussions/3649

This makes it difficult for me to understand how best to contribute.

Reproducer

https://stackblitz.com/edit/vn3vacch?file=package.json

Environment

N/A

Angular version

19

PrimeNG version

v19

Node version

No response

Browser(s)

No response

Steps to reproduce the behavior

1. Open the button documentation
2. Use the theme switcher in the head to switch to RTL mode
3. Obseve the icons on the buttons

Expected behavior

The icons on buttons where the position attribute has not been used switch from left to right.