feat: Added logging and refactored code to accommodate

src/main/java/ch/zhaw/gartenverwaltung/MainFXMLController.java

@@ -4,7 +4,6 @@ import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
 import javafx.fxml.FXMLLoader;
 import javafx.fxml.Initializable;
-import javafx.scene.Node;
 import javafx.scene.control.Button;
 import javafx.scene.layout.AnchorPane;
 
@@ -14,12 +13,15 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.Objects;
 import java.util.ResourceBundle;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 public class MainFXMLController implements Initializable {
     /**
      * Caching the panes
      */
     private final Map<String, AnchorPane> panes = new HashMap<>();
+    private static final Logger LOG = Logger.getLogger(MainFXMLController.class.getName());
 
     @FXML
     private Button home_button;
@@ -100,7 +102,7 @@ public class MainFXMLController implements Initializable {
             loadPane("Home.fxml");
             styleChangeButton(home_button);
         } catch (IOException e) {
-            e.printStackTrace();
+            LOG.log(Level.SEVERE, "Failed to load FXML-Pane!", e);
         }
     }
 }