Daniel Karzel 1de907b176
Change default Monero mainnet node to xmr.to
It appears to be more stable.
Encountered issues with the previous setup, `monero-wallet-rpc` logs:

```
2021-05-24 04:23:54.852	E !r. THROW EXCEPTION: tools::error::no_connection_to_daemon
2021-05-24 04:23:54.857	E Exception at while refreshing, what=no connection to daemon
```
2021-05-24 14:44:44 +10:00
..
2021-05-18 06:33:38 +00:00