qml/NavigationWidget: Fix 'row' implicit width

modules/gui/qt/player/qml/controlbarcontrols/NavigationWidget.qml

@@ -91,6 +91,9 @@ Templates.Pane {
 
             anchors.verticalCenter: parent.verticalCenter
 
+            // NOTE: This is required for the implicitWidth.
+            visible: (source != "")
+
             focus: (item && item.enabled)
 
             // NOTE: We display the 'menu button' as a placeholder for the customize dialog.
@@ -116,6 +119,9 @@ Templates.Pane {
 
             anchors.verticalCenter: parent.verticalCenter
 
+            // NOTE: This is required for the implicitWidth.
+            visible: (source != "")
+
             focus: (item && item.enabled && loaderA.focus === false)
 
             source: (Player.hasPrograms
@@ -135,6 +141,9 @@ Templates.Pane {
 
             anchors.verticalCenter: parent.verticalCenter
 
+            // NOTE: This is required for the implicitWidth.
+            visible: (source != "")
+
             focus: (item && item.enabled && (loaderA.focus === false && loaderB.focus === false))
 
             source: (Player.isTeletextAvailable