Switch to a more reliable data provider

[Andrew-Morozko]

something like https://exchangerate.host/ or other services from https://github.com/public-apis/public-apis#currency-exchange

[aldjsflkdslfkdhsfdhsfkhssfhs77]

Hey. Can you please help? Whenever I try to convert one currency to another, I get this error: 'Failed to get the exchange rate.'