Describe the bug
When using the Auto-Resizing in combination with the Appearance size the Auto-Resizing isn't triggered again after the Appearance size has been changed. Because of this, the Native TextArea stays to 'big'. The Auto-Resizing is only triggered again when you change the value of the TextArea.

To Reproduce
Steps to reproduce the behavior:

1. Open this StackBlitz example
2. Fill in a value
3. Switch the 'Size' DropDownList value to 'Large'.
4. Switch the 'Size' DropDownlist value to 'small'.
5. Additional white space is visible below the value.
6. When changing the value the Auto-Resizing is triggered again.

Expected behavior
The TextArea should be resized automatically when changing its "size" appearance property, without the need to update the value of the component