workspace number mapping: rename config var, use list

.config/quickshell/ii/modules/bar/Workspaces.qml

@@ -217,7 +217,7 @@ Item {
                         horizontalAlignment: Text.AlignHCenter
                         verticalAlignment: Text.AlignVCenter
                         font.pixelSize: Appearance.font.pixelSize.small - ((text.length - 1) * (text !== "10") * 2)
-                        text: `${Config.options?.bar.workspaces.numberMapping[button.workspaceValue - 1] || button.workspaceValue}`
+                        text: Config.options?.bar.workspaces.numberMap[button.workspaceValue - 1] || button.workspaceValue
                         elide: Text.ElideRight
                         color: (monitor?.activeWorkspace?.id == button.workspaceValue) ? 
                             Appearance.m3colors.m3onPrimary : 

.config/quickshell/ii/modules/common/Config.qml

@@ -174,10 +174,7 @@ Singleton {
                     property bool showAppIcons: true
                     property bool alwaysShowNumbers: false
                     property int showNumberDelay: 300 // milliseconds
-                    property var numberMapping: {
-                        "1": "1",
-                        "2": "2"
-                    }
+                    property list<string> numberMap: ["1", "2"] // Characters to show instead of numbers on workspace indicator
                 }
                 property JsonObject weather: JsonObject {
                     property bool enable: false