added 2 new root folders

shared-operations/functions/mergePDFs.js

@@ -0,0 +1,13 @@
+export const mergePDFs = async (snapshots, PDFLib) => {
+
+    const mergedPdf = await PDFLib.PDFDocument.create(); 
+
+    for (let i = 0; i < snapshots.length; i++) {
+        const pdfToMerge = await PDFLib.PDFDocument.load(snapshots[i]);
+
+        const copiedPages = await mergedPdf.copyPages(pdfToMerge, pdfToMerge.getPageIndices());
+        copiedPages.forEach((page) => mergedPdf.addPage(page));
+    }
+
+    return mergedPdf.save();
+};