feat: add initial project setup with core PDF tools and utilities

- Implement core PDF manipulation tools (split, merge, convert, etc.)
- Add state management and UI utilities
- Set up build configuration with Vite and TailwindCSS
- Include essential dependencies for PDF processing
- Add gitignore and basic project configuration files

src/js/logic/organize.ts

@@ -0,0 +1,27 @@
+
+import { showLoader, hideLoader, showAlert } from '../ui.js';
+import { downloadFile } from '../utils/helpers.js';
+import { state } from '../state.js';
+
+import { PDFDocument as PDFLibDocument } from 'pdf-lib';
+
+export async function organize() {
+    showLoader('Saving changes...');
+    try {
+        const newPdf = await PDFLibDocument.create();
+        const pageContainer = document.getElementById('page-organizer');
+        // @ts-expect-error TS(2339) FIXME: Property 'dataset' does not exist on type 'Element... Remove this comment to see the full error message
+        const pageIndices = Array.from(pageContainer.children).map(child => parseInt(child.dataset.pageIndex));
+
+        const copiedPages = await newPdf.copyPages(state.pdfDoc, pageIndices);
+        copiedPages.forEach((page: any) => newPdf.addPage(page));
+
+        const newPdfBytes = await newPdf.save();
+        downloadFile(new Blob([newPdfBytes], { type: 'application/pdf' }), 'organized.pdf');
+    } catch (e) {
+        console.error(e);
+        showAlert('Error', 'Could not save the changes.');
+    } finally {
+        hideLoader();
+    }
+}