Fix newline comments by @koppor in #12747 (#12966)

Author: subhramit

src/main/java/org/jabref/gui/Base.css

@@ -2504,6 +2504,7 @@ journalInfo .grid-cell-b {
     -fx-underline: false !important;
     -fx-text-fill: -fx-text-base-color;
 }
+
 .exampleQuestionStyle:hover {
     -fx-background-color: rgba(0, 0, 0, 0.12);
 }

src/main/java/org/jabref/gui/ai/components/aichat/AiChatComponent.java

@@ -64,8 +64,6 @@ public class AiChatComponent extends VBox {
 
     private final ObservableList<Notification> notifications = FXCollections.observableArrayList();
 
-
-
     @FXML private Loadable uiLoadableChatHistory;
     @FXML private ChatHistoryComponent uiChatHistory;
     @FXML private Button notificationsButton;