fix(bt): better looking auto-connect checkbox

Widgets/NCheckbox.qml

@@ -13,9 +13,11 @@ RowLayout {
   property bool hovering: false
   property color activeColor: Color.mPrimary
   property color activeOnColor: Color.mOnPrimary
-  property int baseSize: Style.baseWidgetSize * 0.7
+  property int baseSize: root.defaultSize
   property real labelSize: Style.fontSizeL
 
+  readonly property int defaultSize: Style.baseWidgetSize * 0.7
+
   signal toggled(bool checked)
   signal entered
   signal exited
@@ -41,7 +43,7 @@ RowLayout {
     Layout.margins: Style.borderS
     implicitWidth: Math.round(root.baseSize)
     implicitHeight: Math.round(root.baseSize)
-    radius: Style.iRadiusXS
+    radius: Style.iRadiusXS * (root.baseSize / root.defaultSize)
     color: root.checked ? root.activeColor : Color.mSurface
     border.color: Color.mOutline
     border.width: Style.borderS