Fix trackpad scrolling by replacing scroll pane bind with height listener

Author: memoflora

src/main/java/flora/ui/MainWindow.java

@@ -7,6 +7,7 @@
 import javafx.scene.control.ScrollPane;
 import javafx.scene.control.TextField;
 import javafx.scene.image.Image;
+import javafx.scene.input.MouseEvent;
 import javafx.scene.layout.AnchorPane;
 import javafx.scene.layout.VBox;
 import javafx.util.Duration;
@@ -31,7 +32,8 @@ public class MainWindow extends AnchorPane {
      */
     @FXML
     public void initialize() {
-        scrollPane.vvalueProperty().bind(dialogContainer.heightProperty());
+        dialogContainer.heightProperty().addListener((obs, oldVal, newVal) -> scrollPane.setVvalue(1.0));
+        scrollPane.addEventFilter(MouseEvent.MOUSE_MOVED, event -> scrollPane.requestFocus());
     }
 
     /**