ios and md properties are not reactive

[kyawswarthwin]

<ion-icon
  slot="end"
  [ios]="expanded ? 'caret-up-outline' : 'caret-down-outline'"
  [md]="expanded ? 'caret-up-sharp' : 'caret-down-sharp'"
  size="small"
></ion-icon>

Platform specificity not work correctly but work with [name].

[brandyscarney]

Thanks for the issue! I was able to reproduce this on latest: https://stackblitz.com/edit/angular-xpcx4t?file=src%2Fapp%2Fexample.component.html

Marking this as a bug as the name property is reactive.

[liamdebeasi]

Thanks for the report. This was fixed via #1174.