Sandro Wong

fix: Update textarea docs to import TextareaModule

1

### Defect Fixes Fixes issue https://github.com/primefaces/primeng/issues/16678 The import `InputTextareaModule` from docs v18.0.0-beta.3 doesn't work 

fix(docs): set `preset` to custom preset

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Updates the example on how to set the custom preset. Issue: https://github.com/primefaces/primeng/issues/16647

fix(docs): removes extra spacing and renames "warning" to "warn"

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- Removes extra spacing - Renames "warning" to "warn" to match the `severity` type defined in https://github.com/primefaces/primeng/blob/6f926f194c970794d8829db0dfa204a526c187bb/src/app/components/button/button.ts#L150 Issue https://github.com/primefaces/primeng/issues/16645

Component: Textarea, style is not being applied.

2

### Describe the bug The textarea component is not working with `pTextarea` directive. ### Environment Local and on stackblitz ### Reproducer https://stackblitz.com/edit/stackblitz-starters-bxbgpx?file=src%2Fmain.ts ### Angular version 18.1.0 ### PrimeNG version 18.0.0-beta.3...