feat: polish envelopes (#2090)

## Description

The rest of the owl

apps/remix/app/components/general/document/document-upload-button.tsx

@@ -108,6 +108,10 @@ export const DocumentUploadButton = ({ className }: DocumentUploadButtonProps) =
           AppErrorCode.LIMIT_EXCEEDED,
           () => msg`You have reached your document limit for this month. Please upgrade your plan.`,
         )
+        .with(
+          'ENVELOPE_ITEM_LIMIT_EXCEEDED',
+          () => msg`You have reached the limit of the number of files per envelope`,
+        )
         .otherwise(() => msg`An error occurred while uploading your document.`);
 
       toast({