plasmoid:fix binding loop from Indexer.separators

--fix binding loop that was breaking tasks launchers
experience

plasmoid/package/contents/ui/abilities/Indexer.qml

@@ -34,7 +34,7 @@ ClientAbility.Indexer {
     readonly property bool tailAppletIsSeparator: isActive ? bridge.indexer.tailAppletIsSeparator : false
     readonly property bool headAppletIsSeparator: isActive ? bridge.indexer.headAppletIsSeparator : false
 
-    readonly property bool isReady: (layout && layout.children.length >= itemsCount) && !updateIsBlocked
+    readonly property bool isReady: (layout && layout.children.length === itemsCount) && !updateIsBlocked
     readonly property int maxIndex: 99999
 
     readonly property alias visibleItemsCount: _privates.visibleItemsCount

plasmoid/package/contents/ui/main.qml

@@ -796,7 +796,7 @@ Item {
         tasksModel: tasksModel
 
         indexer.itemsCount: tasksModel.count
-        indexer.updateIsBlocked: root.inDraggingPhase
+        indexer.updateIsBlocked: root.inDraggingPhase || root.inActivityChange
 
         launchers.group: plasmoid.configuration.launchersGroup
         launchers.syncer.isBlocked: inDraggingPhase