fix(schematics): dashboard schematic fails parsing declaration in spec (#13269)

remove space between <% to make parsing work
remove space after %> to fix Dashboard Component to DashboardComponent
add blank lines at ends of html/css files

src/lib/schematics/dashboard/files/__path__/__name@dasherize@if-flat__/__name@dasherize__.component.__styleext__

@@ -18,4 +18,4 @@
 
 .dashboard-card-content {
   text-align: center;
-}
+}

src/lib/schematics/dashboard/files/__path__/__name@dasherize@if-flat__/__name@dasherize__.component.html

@@ -21,4 +21,4 @@
       </mat-card>
     </mat-grid-tile>
   </mat-grid-list>
-</div>
+</div>

src/lib/schematics/dashboard/files/__path__/__name@dasherize@if-flat__/__name@dasherize__.component.spec.ts

@@ -17,7 +17,7 @@ describe('<%= classify(name) %>Component', () => {
 
   beforeEach(async(() => {
     TestBed.configureTestingModule({
-      declarations: [< %= classify(name) %> Component],
+      declarations: [<%= classify(name) %>Component],
       imports: [
         NoopAnimationsModule,
         LayoutModule,