added merge tu grid Panel

moved borders to external components
added text field for one line with select

src/guiTree/Components/Panel.java

@@ -115,11 +115,6 @@ public class Panel extends Visual {
         g.setColor(getBackgroundColor());
         g.fillRect(0, 0, getWidth(), getHeight());
 
-        if(getHasBorder()) {
-            g.setColor(getBorderColor());
-            g.drawRect(0, 0, getWidth() - 1, getHeight() - 1);
-        }
-
         g.dispose();
     }
 }