fix(material/dialog): use passed in ComponentFactoryResolver to resolve dialog content

Currently the `ComponentFactoryResolver` from the dialog config is only used for the
dialog container. These changes switch to also use it for the dialog content component.

Fixes #17702.

Author: crisbeto

src/material/dialog/dialog.ts

@@ -271,7 +271,8 @@ export abstract class _MatDialogBase<C extends _MatDialogContainerBase> implemen
     } else {
       const injector = this._createInjector<T>(config, dialogRef, dialogContainer);
       const contentRef = dialogContainer.attachComponentPortal<T>(
-          new ComponentPortal(componentOrTemplateRef, config.viewContainerRef, injector));
+          new ComponentPortal(componentOrTemplateRef, config.viewContainerRef, injector,
+            config.componentFactoryResolver));
       dialogRef.componentInstance = contentRef.instance;
     }