feat: made App class work with JavaFX

src/main/java/edu/group5/app/App.java

@@ -3,14 +3,37 @@
 import java.util.HashMap;
 
 import edu.group5.app.control.OrgAPIWrapper;
+import edu.group5.app.view.homepage.HomePageView;
+import javafx.application.Application;
+import javafx.scene.Scene;
+import javafx.scene.layout.StackPane;
+import javafx.stage.Stage;
 import tools.jackson.core.type.TypeReference;
 import tools.jackson.databind.ObjectMapper;
 
 /**
  * Hello world!
  */
-public class App {
-  public static void main(String[] args) throws InterruptedException {
+public class App extends Application {
+  private StackPane root;
+
+  @Override
+  public void start(Stage stage) {
+
+    root = new StackPane();
+
+    showHomePage();
+
+    Scene scene = new Scene(root, 400, 300);
+    stage.setScene(scene);
+    stage.show();
+  }
+
+  public void showHomePage() {
+    root.getChildren().setAll(new HomePageView(this));
+  }
+
+  static void main(String[] args) throws InterruptedException {
     OrgAPIWrapper orgWrap = new OrgAPIWrapper("https://app.innsamlingskontrollen.no/api/public/v1/all");
     System.out.println();
     System.out.println();
@@ -20,5 +43,6 @@ public static void main(String[] args) throws InterruptedException {
     HashMap<String, Object> map = objectMapper.convertValue(imports[0], new TypeReference<HashMap<String, Object>>() {
     });
     System.out.println(map.get("org_number"));
+    launch(args);
   }
 }

src/main/java/edu/group5/app/view/homepage/HeaderView.java

@@ -0,0 +1,4 @@
+package edu.group5.app.view.homepage;
+
+public class HeaderView {
+}

src/main/java/edu/group5/app/view/homepage/HomePageView.java

@@ -0,0 +1,4 @@
+package edu.group5.app.view.homepage;
+
+public class HomePageView {
+}