searchbar: fix lost focus after first letter (linux)

Author: frauzufall

src/main/java/org/scijava/ui/swing/search/SwingSearchBar.java

@@ -214,6 +214,9 @@ private void search() {
 			dialog.setFocusableWindowState(false);
 			dialog.setVisible(true);
 			dialog.setFocusableWindowState(true);
+			SwingUtilities.getWindowAncestor(this).requestFocusInWindow();
+			grabFocus();
+			requestFocus();
 		}
 	}