Feature description

Blockchain block explorer

Is your feature request related to a problem? Please describe.
It is not possible to see blocks and corresponding transactions

Describe the solution you'd like
Choose coin and display blocks list . Zoom details and navigate up to transaction level.

Additional context
The following web sites can be considered as reference

• Ethplorer . It offers an explorer API
• Etherchain
• Skycoin explorer
• Etherscan . Check out the APIs
• Blockchain.com
• BTC.com

Transaction details should have been implemented already , see #19 #216 #238

Possible implementation

• Latest blocks
• View all blocks (with pagination)
• Block detail
• Latest confirmed transactions
• Add miner details e.g. Spark Pool
• Link to transaction details
• Input and output details