Workaround a CSS Janus bug where duplicate transform rules don't get translated.

PiperOrigin-RevId: 213654230

Author: TedSander

angular_components/lib/app_layout/_mixins.scss

@@ -35,7 +35,10 @@
 
   &[persistent].mat-drawer-collapsed {
     &:not([end]) {
+      // TODO(google): Using a fake property to get around bug with
+      // CSSJanus
       transform: translateX(-100%);
+      -acx-workaround: true;
 
       // If the drawer is collapsed, which needs to be an element before the
       // content, set the content to the left edge.
@@ -46,7 +49,10 @@
     }
 
     &[end] {
+      // TODO(google): Using a fake property to get around bug with
+      // CSSJanus
       transform: translateX(100%);
+      -acx-workaround: true;
 
       // [end] drawer is positioned on the opposite side
       ~ material-content,