feat(pdf-tools): add remove-restrictions tool for unlocking pdfs

Implement new feature to remove security restrictions from PDFs including password protection and digital signature limitations. The tool allows users to unlock PDFs they have legitimate access to for editing and printing purposes. Includes UI components, error handling, and legal disclaimer about proper usage.

src/js/utils/helpers.ts

@@ -176,4 +176,4 @@ export async function initializeQpdf() {
   }
 
   return qpdfInstance;
-}
+}