message: Fix format of the returned issuedFrom
diff: @@ -723,7 +723,7 @@ export async function issue_tokens(
  const h = hash_content(content);
  // save into IPFS
  -
  + // eslint-disable-next-line @typescript-eslint/no-explicit-any
  let ipfs_res: any = {};
  if(encMode === 'metamask') {
  // get enc pub key from wallet table
  @@ -751,6 +751,13 @@ export async function issue_tokens(
  issued_from,
  issued_to
  );
  + // note: convert the returned issued_from from a BigInt to a string
  + // eg: "344073830386746567427978432078835137280280269756" becomes "0x3c44cdddb6a900fa2b585dd299e03d12fa4293bc"
  + // this is because the contract uses an int16 instead of Address type although they are interchangeable
  + // the int value allows empty (0).
  + if (token_res.issuedFrom) {
  + token_res.issuedFrom = '0x' + BigInt(token_res.issuedFrom).toString(16);
  + }
  doc.token = token_res;
  return token_res;
  }
  