theme: sweep everything that isnt using a spacing token from singleton,

add Theme.XXS

quickshell/Modules/ControlCenter/Components/ActionTile.qml

@@ -74,7 +74,7 @@ Rectangle {
                 anchors.left: parent.left
                 anchors.right: parent.right
                 anchors.verticalCenter: parent.verticalCenter
-                spacing: 2
+                spacing: Theme.spacingXXS
 
                 Typography {
                     width: parent.width

quickshell/Modules/ControlCenter/Components/DiskUsageWidgetConfigMenu.qml

@@ -24,7 +24,7 @@ Rectangle {
         id: menuColumn
         anchors.fill: parent
         anchors.margins: Theme.spacingS
-        spacing: 2
+        spacing: Theme.spacingXXS
 
         DankToggle {
             width: parent.width

quickshell/Modules/ControlCenter/Components/EditControls.qml

@@ -170,7 +170,7 @@ Row {
 
                             Column {
                                 anchors.verticalCenter: parent.verticalCenter
-                                spacing: 2
+                                spacing: Theme.spacingXXS
                                 width: parent.width - Theme.iconSize * 2 - Theme.spacingM * 3
 
                                 Typography {

quickshell/Modules/ControlCenter/Components/HeaderPane.qml

@@ -51,7 +51,7 @@ Rectangle {
 
         Column {
             anchors.verticalCenter: parent.verticalCenter
-            spacing: 2
+            spacing: Theme.spacingXXS
 
             Typography {
                 text: UserInfoService.fullName || UserInfoService.username || I18n.tr("User")

quickshell/Modules/ControlCenter/Components/SizeControls.qml

@@ -13,7 +13,7 @@ Row {
 
     readonly property var availableSizes: isSlider ? [50, 75, 100] : [25, 50, 75, 100]
 
-    spacing: 2
+    spacing: Theme.spacingXXS
 
     Repeater {
         model: root.availableSizes