deps(embedPDF): Bump codebase to embedPDF v2.3.0 and adjust codebase for new features (#5567)

# 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)

### Translations (if applicable)

- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)

### 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.

---------

Signed-off-by: Balázs Szücs <[email protected]>
Co-authored-by: Anthony Stirling <[email protected]>

frontend/src/core/components/viewer/DocumentReadyWrapper.tsx

@@ -0,0 +1,56 @@
+import React, { useState, useEffect } from 'react';
+import { useDocumentManagerPlugin } from '@embedpdf/plugin-document-manager/react';
+
+interface DocumentReadyWrapperProps {
+  children: (documentId: string) => React.ReactNode;
+  fallback?: React.ReactNode;
+}
+
+export function DocumentReadyWrapper({ children, fallback = null }: DocumentReadyWrapperProps) {
+  const { plugin, isLoading, ready } = useDocumentManagerPlugin();
+  const [activeDocumentId, setActiveDocumentId] = useState<string | null>(null);
+
+  useEffect(() => {
+    if (isLoading || !plugin) return;
+
+    const checkActiveDocument = async () => {
+      await ready;
+
+      // Try to get the active document from the plugin's provides()
+      const docManagerApi = plugin.provides?.();
+      if (docManagerApi) {
+        // Try different methods to get the active document
+        const activeDoc = docManagerApi.getActiveDocument?.();
+        if (activeDoc?.id) {
+          setActiveDocumentId(activeDoc.id);
+          return;
+        }
+      }
+    };
+
+    checkActiveDocument();
+
+    // Subscribe to document changes
+    const docManagerApi = plugin.provides?.();
+    if (docManagerApi?.onDocumentOpened) {
+      const unsubscribe = docManagerApi.onDocumentOpened((event: any) => {
+        const docId = event?.documentId || event?.id || event?.document?.id;
+        if (docId) {
+          setActiveDocumentId(docId);
+        }
+      });
+
+      return () => {
+        if (typeof unsubscribe === 'function') {
+          unsubscribe();
+        }
+      };
+    }
+  }, [plugin, isLoading, ready]);
+
+  if (!activeDocumentId) {
+    return <>{fallback}</>;
+  }
+
+  return <>{children(activeDocumentId)}</>;
+}