Fixes issue 3627: colour dialogs are too small

Change-Id: I47963752599ee8aa36fe328cb15022dd715e7a35
Reviewed-on: http://gerrit.dmdirc.com/812
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>
Reviewed-by: Chris Smith <chris@dmdirc.com>

src/com/dmdirc/addons/ui_swing/components/colours/ColourChooser.java

 import javax.swing.BorderFactory;
 import javax.swing.JButton;
 import javax.swing.JPanel;
-import javax.swing.UIManager;
 import javax.swing.event.EventListenerList;
 
 import net.miginfocom.swing.MigLayout;

src/com/dmdirc/addons/ui_swing/components/colours/ColourPickerPanel.java

 
         final int height = 110 + (showIrc ? 15 : 0) + (showHex ? 125 : 0);
 
-        setPreferredSize(new Dimension(160, height));
+        setPreferredSize(new Dimension(165, height));
 
         addMouseListener(this);
         addMouseMotionListener(this);