Swami Sanapathi

refactor(core): remove unused import

1

PR just removes the unused `EffectRef` import from `to_observable.ts`

### Describe the bug Angular 18 has been released, please consider adding support for it. - https://github.com/angular/angular/releases - eslint support PR is in WIP: https://github.com/angular-eslint/angular-eslint/pull/1830 ### Environment all envs ###...

Compatibility Issue: Using PrimeNG 19 with Angular 19 without Full Redesign or Token Overhaul

3

**Problem:** We are working on an enterprise application and have recently upgraded to Angular 19. However, we are encountering compatibility issues when trying to use PrimeNG 19 in this environment....