Memory leak fixes

src/lib/pdfLayout.ts

@@ -6,6 +6,7 @@ import {
 	TEXT_FIELD_LAYOUT,
 	PHOTO_FIELD_LAYOUT
 } from './pdfSettings';
+import { get } from 'idb-keyval';
 
 // Conversion factor from millimeters to points (1 inch = 72 points, 1 inch = 25.4 mm)
 export const MM_TO_PT = 72 / 25.4;
@@ -17,6 +18,11 @@ export interface GridLayout {
 	cellHeight: number; // mm
 }
 
+// Function to retrieve a blob from IndexedDB
+export async function getImageBlob(url: string): Promise<Blob | undefined> {
+	return await get(url);
+}
+
 // Calculate how many cards can fit on a page.
 export function calculateGrid(
 	pageWidth: number,