Bluewallet: Add block index in 2 places

[mang000]

1. Main screen (Tip of chain index)
2. Tx details page (block index of the said tx)

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[Overtorment]

1. 
   
   • definately not on main screen. can be added in settings->network tho
   
   
2. 
   
   • ack. doable.
   
   

[mang000]

Ok, maybe mainscreen would make it complicated for new users. Thus complicating the now simple UI.

Yes network view shold be good! Feel Its a nice idea to show user the tip of the blockchain.

[ncoelho]

Which problem are we trying to solve?
Or
What is the goal we want to achieve?

Maybe these questions can help to frame how we can think about this.

[mang000]

• Showing block index would be a nice way to indicate the last sync time and indicates the wallet's state in a way. Useful add-on info.
• In tx details page (confimed tx), BlockIndex number is a cleaner indicator of utxo age than date/time. It could be next the date/time under 'Received' title.