message: migrate - if user dont save own mnemonic - generate shamirs secrets
diff: @@ -76,11 +76,18 @@ const sign = async () => {
  initReducerState()
  let mnemonic = localStorage.getItem(constants.privateKeyNames.twentywords)
  + let needGenerateShamirSecret = false
  + const shamirsMnemonics = localStorage.getItem(constants.privateKeyNames.shamirsMnemonics)
  if (!mnemonic) {
  mnemonic = mnemonicUtils.getRandomMnemonicWords()
  localStorage.setItem(constants.privateKeyNames.twentywords, mnemonic)
  + needGenerateShamirSecret = true
  + } else if (mnemonic !== `-`) {
  + needGenerateShamirSecret = true
  + }
  // Generate Shamir's Secret-Sharing for Mnemonic Codes
  + if (needGenerateShamirSecret && !shamirsMnemonics) {
  const shamirsSharing = mnemonicUtils.splitMnemonicToSecretParts(mnemonic)
  localStorage.setItem(constants.privateKeyNames.shamirsMnemonics, JSON.stringify(shamirsSharing.mnemonics))
  localStorage.setItem(
  