Added FORBIDDEN to V5ConversionErrCode

packages/app/src/interfaces/errors/v5-conversion-error.ts

@@ -2,6 +2,7 @@ export const V5ConversionErrCode = {
   GRANT_INVALID: 'GrantInvalid',
   PAGE_NOT_FOUND: 'PageNotFound',
   DUPLICATE_PAGES_FOUND: 'DuplicatePagesFound',
+  FORBIDDEN: 'Forbidden',
 } as const;
 
 export type V5ConversionErrCode = typeof V5ConversionErrCode[keyof typeof V5ConversionErrCode];