refactor: data-active-control attribute

Author: ok7sai

src/aria/grid/grid.ts

@@ -378,7 +378,7 @@ export class GridCell {
   host: {
     'class': 'grid-cell-widget',
     '[attr.data-active]': '_pattern.active()',
-    '[attr.data-widget-activated]': 'isActivated()',
+    '[attr.data-active-control]': 'isActivated() ? "widget" : "cell"',
     '[tabindex]': '_tabIndex()',
   },
 })

src/components-examples/aria/grid/grid-common.css

@@ -26,7 +26,7 @@
   outline-offset: 3px;
 }
 
-.example-cell.example-cell.example-cell:has([data-widget-activated='true']) {
+.example-cell.example-cell.example-cell:has([data-active-control='widget']) {
   outline: 3px dashed var(--mat-sys-on-error-container);
   outline-offset: 3px;
 }