Use FormLayout with twinFormLayouts for alignment of lockscreen config

Much simpler and also needed for correctly aligning with  wallpaper plugins

lookandfeel/contents/lockscreen/config.qml

@@ -1,44 +1,22 @@
 import QtQuick 2.5
 import QtQuick.Controls 2.5 as QQC2
 import QtQuick.Layouts 1.1
+import org.kde.kirigami 2.12 as Kirigami
 
-ColumnLayout {
+Kirigami.FormLayout {
     property alias cfg_alwaysShowClock: alwaysClock.checked
     property alias cfg_showMediaControls: showMediaControls.checked
 
-    spacing: 0
+    twinFormLayouts: parentLayout
 
-    RowLayout {
-        spacing: units.largeSpacing / 2
-
-        QQC2.Label {
-            Layout.minimumWidth: formAlignment - units.largeSpacing //to match wallpaper config...
-            horizontalAlignment: Text.AlignRight
-            text: i18nd("plasma_lookandfeel_org.kde.lookandfeel", "Clock:")
-        }
-        QQC2.CheckBox {
-            id: alwaysClock
-            text: i18ndc("plasma_lookandfeel_org.kde.lookandfeel", "verb, to show something", "Always show")
-        }
-        Item {
-            Layout.fillWidth: true
-        }
+    QQC2.CheckBox {
+        id: alwaysClock
+        Kirigami.FormData.label: i18nd("plasma_lookandfeel_org.kde.lookandfeel", "Clock:")
+        text: i18ndc("plasma_lookandfeel_org.kde.lookandfeel", "verb, to show something", "Show always")
     }
-
-    RowLayout {
-        spacing: units.largeSpacing / 2
-
-        QQC2.Label {
-            Layout.minimumWidth: formAlignment - units.largeSpacing //to match wallpaper config...
-            horizontalAlignment: Text.AlignRight
-            text: i18nd("plasma_lookandfeel_org.kde.lookandfeel", "Media controls:")
-        }
-        QQC2.CheckBox {
-            id: showMediaControls
-            text: i18ndc("plasma_lookandfeel_org.kde.lookandfeel", "verb, to show something", "Show")
-        }
-        Item {
-            Layout.fillWidth: true
-        }
+    QQC2.CheckBox {
+        id: showMediaControls
+        Kirigami.FormData.label: i18nd("plasma_lookandfeel_org.kde.lookandfeel", "Media controls:")
+        text: i18ndc("plasma_lookandfeel_org.kde.lookandfeel", "verb, to show something", "Show")
     }
 }