applets/systemtray: Make large spacing consistent with the Task Manager setting

Currently the large spacing setting for the System Tray is different from the large
spacing setting for Task Manager icons. So when both are set to large (e.g. in Tablet
mode) they look out of sync.

applets/systemtray/package/contents/ui/ConfigGeneral.qml

@@ -57,7 +57,7 @@ ColumnLayout {
                 },
                 {
                     "label": i18nc("@item:inlistbox Icon spacing", "Large"),
-                    "spacing": 4
+                    "spacing": 6
                 }
             ]
             textRole: "label"
@@ -71,7 +71,7 @@ ColumnLayout {
                 switch (cfg_iconSpacing) {
                     case 1: return 0; // Small
                     case 2: return 1; // Normal
-                    case 4: return 2; // Large
+                    case 6: return 2; // Large
                 }
             }
 

applets/systemtray/package/contents/ui/main.qml

@@ -121,7 +121,7 @@ MouseArea {
             readonly property int rowsOrColumns: autoSize ? 1 : Math.max(1, Math.min(count, Math.floor(gridThickness / (smallIconSize + PlasmaCore.Units.smallSpacing))))
 
             // Add margins only if the panel is larger than a small icon (to avoid large gaps between tiny icons)
-            readonly property int cellSpacing: PlasmaCore.Units.smallSpacing * (Kirigami.Settings.tabletMode ? 4 : Plasmoid.configuration.iconSpacing)
+            readonly property int cellSpacing: PlasmaCore.Units.smallSpacing * (Kirigami.Settings.tabletMode ? 6 : Plasmoid.configuration.iconSpacing)
             readonly property int smallSizeCellLength: gridThickness < smallIconSize ? smallIconSize : smallIconSize + cellSpacing
 
             cellHeight: {