MultiSelect v18: Wrong placeholder color - missing p-placeholder class

[TaneliTuomola]

Describe the bug

Placeholder color is wrong. The element does not get the correct formatting because the correct class(p-placeholder) is not set for it.

Image: PrimeVue vs PrimeNg

Environment

https://v18.primeng.org/multiselect#basic

Reproducer

https://v18.primeng.org/multiselect#basic

Angular version

18.0.5

PrimeNG version

18.0.0-beta.2

Build / Runtime

Angular CLI App

Language

TypeScript

Node version (for AoT issues node --version)

22.6.0

Browser(s)

No response

Steps to reproduce the behavior

https://v18.primeng.org/multiselect#basic

Expected behavior

https://primevue.org/multiselect/#basic

[TaneliTuomola]

Still present in version 18.0.0-beta.3

The p-placeholder class must be set to the p-multiselect-label element when the placeholder text is displayed. @cetincakiroglu