feat: better notification storage and image caching + blobs

Plugins/ZShell/Components/wavyline.hpp

@@ -103,6 +103,11 @@ class WavyLine : public QCanvasPainterItem {
 	[[nodiscard]] QCanvasPainterItemRenderer* createItemRenderer()
 		const override;
 
+	// Keeps the renderer's device pixel ratio current: strokes and sample
+	// spacing are quantized in device pixels, so they must be built with the
+	// ratio the window actually has.
+	void itemChange(ItemChange change, const ItemChangeData& value) override;
+
 	private:
 	friend class WavyLineRenderer;
 
@@ -118,6 +123,7 @@ class WavyLine : public QCanvasPainterItem {
 	qreal m_fullAngle;
 	qreal m_radius;
 	qreal m_value;
+	qreal m_dpr = 1.0;
 };
 
 } // namespace ZShell::controls