Add border around the checked radio button in the intents and infill

CURA-8202

resources/qml/PrintSetupSelector/Recommended/RecommendedInfillDensitySelector.qml

@@ -120,6 +120,8 @@ Item
                     implicitWidth: UM.Theme.getSize("print_setup_slider_handle").width
                     implicitHeight: implicitWidth
                     radius: Math.round(implicitWidth / 2)
+                    border.color: defaultItemColor
+                    border.width: UM.Theme.getSize("default_lining").height
                 }
 
                 tickmarks: Repeater

resources/qml/RadioCheckbar.qml

@@ -146,6 +146,7 @@ Item
                     }
                     radius: Math.round(width / 2)
                     color: activeColor
+                    border.color: defaultItemColor
                     visible: checkbox.checked
                 }
             }