[Notifications] Remove space between pause/stop and details button

This was meant to provide some separation but since the arrow icon has so much padding around it anyway and more importantly,
it breaks alignment in the list, remove it.

Differential Revision: https://phabricator.kde.org/D21471

applets/notifications/package/contents/ui/JobItem.qml

@@ -94,7 +94,6 @@ ColumnLayout {
 
             PlasmaComponents.ToolButton {
                 id: expandButton
-                Layout.leftMargin: units.smallSpacing
                 iconSource: checked ? "arrow-down" : (LayoutMirroring.enabled ? "arrow-left" : "arrow-right")
                 tooltip: checked ? i18ndc("plasma_applet_org.kde.plasma.notifications", "A button tooltip; hides item details", "Hide Details")
                                  : i18ndc("plasma_applet_org.kde.plasma.notifications", "A button tooltip; expands the item to show details", "Show Details")