Feature/v2/navigate save prompt (#4586)

# Description of Changes

<!--
Please provide a summary of the changes, including:

- What was changed
- Why the change was made
- Any challenges encountered

Closes #(issue_number)
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---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.

frontend/src/services/pdfExportService.ts

@@ -98,10 +98,7 @@ export class PDFExportService {
         // Create a blank page
         const blankPage = newDoc.addPage(PageSizes.A4);
 
-        // Apply rotation if needed
-        if (page.rotation !== 0) {
-          blankPage.setRotation(degrees(page.rotation));
-        }
+        blankPage.setRotation(degrees(page.rotation));
       } else if (page.originalFileId && loadedDocs.has(page.originalFileId)) {
         // Get the correct source document for this page
         const sourceDoc = loadedDocs.get(page.originalFileId)!;
@@ -111,10 +108,7 @@ export class PDFExportService {
           // Copy the page from the correct source document
           const [copiedPage] = await newDoc.copyPages(sourceDoc, [sourcePageIndex]);
 
-          // Apply rotation
-          if (page.rotation !== 0) {
-            copiedPage.setRotation(degrees(page.rotation));
-          }
+          copiedPage.setRotation(degrees(page.rotation));
 
           newDoc.addPage(copiedPage);
         }
@@ -147,10 +141,7 @@ export class PDFExportService {
         // Create a blank page
         const blankPage = newDoc.addPage(PageSizes.A4);
 
-        // Apply rotation if needed
-        if (page.rotation !== 0) {
-          blankPage.setRotation(degrees(page.rotation));
-        }
+        blankPage.setRotation(degrees(page.rotation));
       } else {
         // Get the original page from source document using originalPageNumber
         const sourcePageIndex = page.originalPageNumber - 1;
@@ -159,10 +150,7 @@ export class PDFExportService {
           // Copy the page
           const [copiedPage] = await newDoc.copyPages(sourceDoc, [sourcePageIndex]);
 
-          // Apply rotation
-          if (page.rotation !== 0) {
-            copiedPage.setRotation(degrees(page.rotation));
-          }
+          copiedPage.setRotation(degrees(page.rotation));
 
           newDoc.addPage(copiedPage);
         }