Use Ctrl+Cmd+N shortcut for night mode

This matches iA Writer
6 years ago · 9d0be74ae4
--- a/writeas/Base.lproj/Main.storyboard
+++ b/writeas/Base.lproj/Main.storyboard
@@ -295,7 +295,8 @@ DQ
                                <modifierMask key="keyEquivalentModifierMask"/>
                                <menu key="submenu" title="View" id="HyV-fh-RgO">
                                    <items>
                                        <menuItem title="Night Mode" keyEquivalent="u" id="jYO-0u-qN9">
                                        <menuItem title="Night Mode" keyEquivalent="n" id="jYO-0u-qN9">
                                            <modifierMask key="keyEquivalentModifierMask" control="YES" command="YES"/>
                                            <connections>
                                                <action selector="toggleNightMode:" target="Voe-Tx-rLC" id="Nmq-eG-y3w"/>
                                            </connections>