prod build fixes

src/app/dummy.module.ts

@@ -0,0 +1,12 @@
+import { NgModule } from '@angular/core';
+
+import { ModalComponent } from 'jslib/angular/components/modal.component';
+
+@NgModule({
+    imports: [],
+    declarations: [
+        ModalComponent,
+    ],
+})
+export class DummyModule {
+}