docs(demos): fix issues after dependency upgrades

Author: mattlewis92

projects/demos/app/demo-app.component.ts

@@ -36,13 +36,13 @@ async function getSources(folder: string): Promise<Source[]> {
     return {
       filename,
       contents: {
-        raw: contents.raw
+        raw: contents.raw.default
           .replace(
             ",\n    RouterModule.forChild([{ path: '', component: DemoComponent }])",
             ''
           )
           .replace("\nimport { RouterModule } from '@angular/router';", ''),
-        highlighted: contents.highlighted // TODO - move this into a regexp replace for both
+        highlighted: contents.highlighted.default // TODO - move this into a regexp replace for both
           .replace(
             ',\n    RouterModule.forChild([{ path: <span class="hljs-string">\'\'</span>, component: DemoComponent }])',
             ''
@@ -189,7 +189,7 @@ platformBrowserDynamic().bootstrapModule(BootstrapModule).then(ref => {
     };
 
     demoUtilsSources.forEach(source => {
-      files[`demo-utils/${source.filename}`] = source.contents.raw;
+      files[`demo-utils/${source.filename}`] = source.contents.raw.default;
     });
 
     demo.sources.forEach(source => {

projects/demos/app/demo-modules/async-events/component.ts

@@ -69,11 +69,11 @@ export class DemoComponent implements OnInit {
     const params = new HttpParams()
       .set(
         'primary_release_date.gte',
-        format(getStart(this.viewDate), 'YYYY-MM-DD')
+        format(getStart(this.viewDate), 'yyyy-MM-dd')
       )
       .set(
         'primary_release_date.lte',
-        format(getEnd(this.viewDate), 'YYYY-MM-DD')
+        format(getEnd(this.viewDate), 'yyyy-MM-dd')
       )
       .set('api_key', '0ec33936a68018857d727958dca1424f');