message: Update CHANGELOG v0.3.7
  Add revert upgrade
diff: - [Swap] Fix: Error `cannot estimate gas; transaction may fail or may require manual gas limit` [#1594](https://github.com/thorchain/asgardex-electron/issues/1594)
  - [Swap/Deposit] Improve `approve` handling for ERC20 tokens [#1602](https://github.com/thorchain/asgardex-electron/pull/1602)
  - [Swap/Deposit] Better feedback for loading states [#1602](https://github.com/thorchain/asgardex-electron/pull/1602)
  +- Revert upgrade `xchain-bitcoin|bitcoin-cash|litecoin` [#1606](https://github.com/thorchain/asgardex-electron/pull/1606)
  ## (Internal) update
  