coin charts: display latest coin news

[esengulov]

remove not-ready label from issues below when ready

• [x] https://github.com/horizontalsystems/unstoppable-wallet-ios/issues/1588
• [x] https://github.com/horizontalsystems/unstoppable-wallet-android/issues/1923

@TalgatNurdinov also keep coin mind that soon we will need to link coin reports/guides from somewhere in the wallet. I think charts controller is a good candidate for that.

[TalgatNurdinov]