fixes for dock configuration window

--fix binding loop from Tweaks page
--remove anchorings when used Layouts

shell/package/contents/configuration/LatteDockConfiguration.qml

@@ -225,18 +225,15 @@ FocusScope {
                 PlasmaComponents.ToolButton {
                     id: pinButton
 
-                    anchors.right: parent.right
-                    anchors.top: parent.top
-                    //!avoid editMode box shadow
-                    anchors.topMargin: units.smallSpacing
-                    anchors.rightMargin: units.smallSpacing
-
                     Layout.fillWidth: false
                     Layout.fillHeight: false
                     Layout.preferredWidth: width
                     Layout.preferredHeight: height
                     Layout.alignment: Qt.AlignRight | Qt.AlignVCenter
                     Layout.bottomMargin: units.smallSpacing * 3
+                    //!avoid editMode box shadow
+                    Layout.topMargin: units.smallSpacing * 2
+                    Layout.rightMargin: units.smallSpacing
 
                     iconSource: "window-pin"
                     checkable: true

shell/package/contents/configuration/TweaksConfig.qml

@@ -250,7 +250,8 @@ PlasmaComponents.Page {
                 PlasmaComponents.Button {
                     iconSource: "distribute-horizontal-x"
                     text: i18n("Add Spacer")
-                    Layout.minimumWidth: 0.5 * (parent.width - units.smallSpacing)
+                    Layout.minimumWidth: 0.5 * (content.width - 5 * units.smallSpacing)
+                    Layout.maximumWidth: Layout.minimumWidth
                     Layout.alignment: Qt.AlignLeft
                     tooltip: i18n("Add a spacer to separate applets")