message: docs(ivy): update style binding docs to v9 behavior
  PR Close
diff: <button [style.font-size.em]="isSpecial ? 3 : 1" >Big</button>
  <button [style.font-size.%]="!isSpecial ? 150 : 50" >Small</button>
  <!-- #enddocregion style-binding-condition-->
  +
  +<!-- #docregion direct-style-binding -->
  +<h3>Bind to multiple styles</h3>
  +
  +<div style="color: blue" [style]="styleExpr">Add multiple styles</div>
  +<!-- #enddocregion direct-style-binding -->
  