feat: better notification storage and image caching + blobs

Plugins/ZShell/Components/snaplayout.hpp

@@ -84,6 +84,9 @@ class SnapLayout : public QQuickLayout {
 
 	void itemChange(ItemChange change, const ItemChangeData& value) override;
 
+	void geometryChange(
+		const QRectF& newGeometry, const QRectF& oldGeometry) override;
+
 	void itemDestroyed(QQuickItem* item) override;
 	void itemVisibilityChanged(QQuickItem* item) override;
 	void itemGeometryChanged(
@@ -118,6 +121,9 @@ class SnapLayout : public QQuickLayout {
 
 	void arrangeChildren();
 
+	// Re-arranges when the origin moved by a fraction of a device pixel.
+	void rearrangeForOriginMove();
+
 	void applySpacing();
 
 	void updateAncestorListeners();
@@ -142,6 +148,7 @@ class SnapLayoutPrivate : public QQuickLayoutPrivate {
 	QList<QQuickItem*> invalidateAfterRearrange;
 
 	QVector<QPointer<QQuickItem>> ancestorListeners;
+	QHash<QQuickItem*, QFlags<QQuickItemPrivate::ChangeType>> ancestorMasks;
 	qint64 originResidualX = -1;
 	qint64 originResidualY = -1;