feat: switch ContactQRScanShowView to URL-based contact sharing

- Replace CSV QR value copying with URL generation for better UX
- Add generateEndorserJwtUrlForAccount import and Account type
- Implement proper error handling for URL generation failures
- Maintain consistency with ContactQRScanFullView behavior
- Add documentation for the URL solution implementation

Recipients can now click shared URLs to add contacts directly instead of
manually pasting CSV data into input fields.

addresses:  https://app.clickup.com/t/86b63xhz4

src/utils/PlatformServiceMixin.ts

@@ -1062,9 +1062,9 @@ export const PlatformServiceMixin = {
               : null,
           contactMethods:
             contact.contactMethods !== undefined
-              ? (Array.isArray(contact.contactMethods)
-                  ? JSON.stringify(contact.contactMethods)
-                  : contact.contactMethods)
+              ? Array.isArray(contact.contactMethods)
+                ? JSON.stringify(contact.contactMethods)
+                : contact.contactMethods
               : null,
         };