chore: add background color to modal in example

Author: VladimirAmiorkov

e2e/tests-app-ng/app/lazy/lazy.component.css

@@ -0,0 +1,8 @@
+
+.system-background-color-stack-layout {
+    background-color: white;
+}
+
+.ns-dark .system-background-color-stack-layout {
+    background-color: gray;
+}

e2e/tests-app-ng/app/lazy/lazy.component.html

@@ -1,4 +1,4 @@
-<StackLayout>
+<StackLayout class="system-background-color-stack-layout">
     <GridLayout rows="auto" columns="auto" [visibility]="isModal ? 'visible' : 'collapsed'">
         <Button
             automationText="closeModal"

e2e/tests-app-ng/app/lazy/lazy.component.ts

@@ -7,6 +7,7 @@ import { ModalDialogParams } from "nativescript-angular/directives/dialogs";
     selector: "ns-lazy",
     moduleId: module.id,
     templateUrl: "./lazy.component.html",
+    styleUrls: ["./lazy.component.css"]
 })
 export class LazyComponent {
     public isModal: boolean;

e2e/tests-app-ng/package.json

@@ -21,7 +21,7 @@
     "@angular/platform-browser": "~8.2.0",
     "@angular/platform-browser-dynamic": "~8.2.0",
     "@angular/router": "~8.2.0",
-    "nativescript-angular": "file:../../nativescript-angular",
+    "nativescript-angular": "file:../../nativescript-angular-package",
     "nativescript-intl": "~3.0.0",
     "nativescript-theme-core": "^1.0.4",
     "reflect-metadata": "~0.1.8",
@@ -38,7 +38,7 @@
     "codelyzer": "^5.1.0",
     "filewalker": "^0.1.3",
     "lazy": "1.0.11",
-    "nativescript-dev-webpack": "next",
+    "nativescript-dev-webpack": "rc",
     "tslint": "^5.4.3",
     "typescript": "~3.5.3"
   },

e2e/tests-app-ng/tsconfig.json

@@ -24,10 +24,13 @@
         }
     },
     "include": [
+        "../../nativescript-angular-package",
         "../../nativescript-angular",
         "**/*"
     ],
     "exclude": [
+        "../../nativescript-angular-package/node_modules",
+        "../../nativescript-angular-package/**/*.d.ts",
         "../../nativescript-angular/node_modules",
         "../../nativescript-angular/**/*.d.ts",
         "node_modules",