fix: include cmaps for pdf viewer (#2177)

We were previously omitting cmaps meaning that
when signing documents with certain UTF-8 characters or CJK characters
they would appear as outlined squares in the pdf viewer despite the
actual pdf looking as expected with the characters displaying correctly.

packages/ui/components/pdf-viewer/pdf-viewer-konva.tsx

@@ -9,6 +9,7 @@ import { type PDFDocumentProxy } from 'pdfjs-dist';
 import { Document as PDFDocument, Page as PDFPage, pdfjs } from 'react-pdf';
 
 import { useCurrentEnvelopeRender } from '@documenso/lib/client-only/providers/envelope-render-provider';
+import { NEXT_PUBLIC_WEBAPP_URL } from '@documenso/lib/constants/app';
 import { cn } from '@documenso/ui/lib/utils';
 import { Alert, AlertDescription, AlertTitle } from '@documenso/ui/primitives/alert';
 
@@ -22,6 +23,10 @@ pdfjs.GlobalWorkerOptions.workerSrc = new URL(
   import.meta.url,
 ).toString();
 
+const pdfViewerOptions = {
+  cMapUrl: `${NEXT_PUBLIC_WEBAPP_URL()}/static/cmaps`,
+};
+
 const PDFLoader = () => (
   <>
     <Loader className="text-documenso h-12 w-12 animate-spin" />
@@ -167,6 +172,7 @@ export const PdfViewerKonva = ({
               </div>
             </div>
           }
+          // options={pdfViewerOptions}
         >
           {Array(numPages)
             .fill(null)