nifty: solve the missing imports

Author: stephengold

nifty/src/main/java/jme3utilities/nifty/dialog/DisplaySizeDialog.java

@@ -1,5 +1,5 @@
 /*
- Copyright (c) 2018-2023, Stephen Gold
+ Copyright (c) 2018-2024 Stephen Gold
  All rights reserved.
 
  Redistribution and use in source and binary forms, with or without
@@ -28,9 +28,9 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 
 import java.util.Locale;
 import java.util.logging.Logger;
+import jme3utilities.DsUtils;
 import jme3utilities.Validate;
 import jme3utilities.math.RectSizeLimits;
-import jme3utilities.ui.DsUtils;
 
 /**
  * Controller for a text-entry dialog box used to input display dimensions.

nifty/src/main/java/jme3utilities/nifty/displaysettings/DsScreen.java

@@ -1,5 +1,5 @@
 /*
- Copyright (c) 2019-2023 Stephen Gold
+ Copyright (c) 2019-2024 Stephen Gold
  All rights reserved.
 
  Redistribution and use in source and binary forms, with or without
@@ -39,6 +39,7 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 import java.util.Locale;
 import java.util.logging.Level;
 import java.util.logging.Logger;
+import jme3utilities.DsUtils;
 import jme3utilities.InitialState;
 import jme3utilities.MyString;
 import jme3utilities.Validate;
@@ -49,7 +50,6 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 import jme3utilities.nifty.dialog.DisplaySizeDialog;
 import jme3utilities.ui.ActionApplication;
 import jme3utilities.ui.DisplaySettings;
-import jme3utilities.ui.DsUtils;
 import jme3utilities.ui.InputMode;
 
 /**