feat(control-center): add DiskUsage widget config overlay with showMountPath toggle and standardized tile sizing (#2507)

* feat(control-center): add widget config overlay with showMountPath toggle for DiskUsage

Introduces WidgetConfigOverlay and DiskUsageWidgetConfigMenu components, allowing
users to toggle mount path visibility per DiskUsage widget in edit mode

* refactor(control-center): use Theme.iconSizeLarge and Theme.fontSizeLarge for small tiles

Standardize SmallDiskUsageButton and SmallBatteryButton sizing with Theme.iconSizeLarge
and Theme.fontSizeLarge, and unify font weight to Font.Bold on both tile widgets.

* fix(control-center): adjust SmallDiskUsageButton font size based on showMountPath

* refactor(control-center): simplify DiskUsage config menu i18n strings

Remove the redundant "Disk Usage Widget" title and the toggle description
to reduce translatable strings

quickshell/Modules/ControlCenter/ControlCenterPopout.qml

@@ -273,6 +273,7 @@ DankPopout {
                         onMoveWidget: (fromIndex, toIndex) => widgetModel.moveWidget(fromIndex, toIndex)
                         onToggleWidgetSize: index => widgetModel.toggleWidgetSize(index)
                         onCollapseRequested: root.collapseAll()
+                        onConfigRequested: (idx, data, anchor) => widgetConfigOverlay.open(idx, data, anchor)
                     }
 
                     EditControls {
@@ -303,6 +304,11 @@ DankPopout {
                 anchors.fill: parent
                 z: 10000
             }
+
+            WidgetConfigOverlay {
+                id: widgetConfigOverlay
+                anchors.fill: parent
+            }
         }
     }