Use 'tnum' OpenType feature (tabular numbers) in bar clock widget

Modules/Bar/Widgets/Clock.qml

@@ -105,6 +105,7 @@ Item {
               color: textColor
               wrapMode: Text.WordWrap
               Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter
+              features: ({ "tnum": 1 })
             }
           }
         }
@@ -129,6 +130,7 @@ Item {
               color: textColor
               wrapMode: Text.WordWrap
               Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter
+              features: ({ "tnum": 1 })
             }
           }
         }

Widgets/NText.qml

@@ -18,11 +18,13 @@ Text {
     }
     return fontScale;
   }
+  property var features: ({})
 
   opacity: enabled ? 1.0 : 0.6
   font.family: root.family
   font.weight: Style.fontWeightMedium
   font.pointSize: Math.max(1, root.pointSize * fontScale)
+  font.features: root.features
   color: Color.mOnSurface
   elide: Text.ElideRight
   wrapMode: Text.NoWrap