added documentation for Rent

Projekte/monopoly/client/src/main/java/pp/monopoly/client/gui/popups/Rent.java

@@ -16,14 +16,32 @@ import pp.monopoly.client.MonopolyApp;
 import pp.monopoly.notification.Sound;
 
 /**
- * Rent popup is triggered when a player enters a field owned by another player and needs to pay rent.
+ * Rent is a popup that is triggered when a player lands on a property owned by another player
+ * and needs to pay rent in the Monopoly application.
+ * <p>
+ * Displays the rent amount and the recipient player's name, with an option to confirm the payment.
+ * </p>
  */
 public class Rent extends Dialog {
+    /** Reference to the Monopoly application instance. */
     private final MonopolyApp app;
+
+    /** Semi-transparent overlay background for the popup. */
     private final Geometry overlayBackground;
+
+    /** Main container for the rent information and action. */
     private final Container rentContainer;
+
+    /** Background container providing a border for the rent popup. */
     private final Container backgroundContainer;
 
+    /**
+     * Constructs the Rent popup displaying the rent amount and recipient player.
+     *
+     * @param app        the Monopoly application instance
+     * @param playerName the name of the player to whom the rent is owed
+     * @param amount     the amount of rent to be paid
+     */
     public Rent(MonopolyApp app, String playerName, int amount) {
         super(app.getDialogManager());
         this.app = app;