New explore

Changed the explore page to view images from database Explore page lists the images, which now are clickable, and stores the id not a string viewpicture is now upated to view the image with the given id

src/main/java/NTNU/IDATT1002/controllers/Explore.java

@@ -69,7 +69,7 @@ public class Explore implements Initializable {
             vBox.setPrefHeight(400);
             vBox.setPrefWidth(400);
             vBox.setAlignment(Pos.CENTER);
-            vBox.setStyle("-fx-background-color: #999999;");
+            //vBox.setStyle("-fx-background-color: #999999;");
 
             //Image container
             ImageView imageView = new ImageView();