moved storage from config to persistent state

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

@@ -206,9 +206,6 @@ Singleton {
                         property string username: "[unset]"
                     }
                 }
-                property JsonObject bottomWidgetRight: JsonObject {
-                    property int lastTab: 0
-                }
             }
 
             property JsonObject time: JsonObject {

.config/quickshell/modules/common/Persistent.qml

@@ -36,6 +36,7 @@ Singleton {
             property JsonObject sidebar: JsonObject {
                 property JsonObject bottomGroup: JsonObject {
                     property bool collapsed: false
+                    property int tab: 0
                 }
             }
 

.config/quickshell/modules/common/PersistentStates.qml

@@ -12,6 +12,7 @@ Singleton {
     property QtObject sidebar: QtObject {
         property QtObject bottomGroup: QtObject {
             property bool collapsed: false
+            property int tab: 0
         }
     }
 

.config/quickshell/modules/sidebarRight/BottomWidgetGroup.qml

@@ -14,7 +14,7 @@ Rectangle {
     color: Appearance.colors.colLayer1
     clip: true
     implicitHeight: collapsed ? collapsedBottomWidgetGroupRow.implicitHeight : bottomWidgetGroupRow.implicitHeight
-    property int selectedTab: Config.options.sidebar.bottomWidgetRight.lastTab
+    property int selectedTab: Persistent.states.sidebar.bottomGroup.tab
     property bool collapsed: Persistent.states.sidebar.bottomGroup.collapsed
     property var tabs: [
         {"type": "calendar", "name": "Calendar", "icon": "calendar_month", "widget": calendarWidget}, 
@@ -146,7 +146,7 @@ Rectangle {
                         buttonIcon: modelData.icon
                         onClicked: {
                             root.selectedTab = index
-                            Config.options.sidebar.bottomWidgetRight.lastTab = index
+                            Persistent.states.sidebar.bottomGroup.tab = index
                         }
                     }
                 }