feat(ivy): require 'token' for ngInjectableDef (#30855)

The compiler generates a 'token' field when it emits an ngInjectableDef,
but this field was not required by defineInjectable or the InjectableDef
interface, nor was it added by InjectionToken.

This commit makes 'token' required and adds it where missing.

PR Close #30855

packages/common/src/viewport_scroller.ts

@@ -22,6 +22,7 @@ export abstract class ViewportScroller {
   // See #23917
   /** @nocollapse */
   static ngInjectableDef = ɵɵdefineInjectable({
+    token: ViewportScroller,
     providedIn: 'root',
     factory: () => new BrowserViewportScroller(ɵɵinject(DOCUMENT), window, ɵɵinject(ErrorHandler))
   });