Add links to Explorer on Wallet account homepage

[loonggamma]

Context
As I user, I don't have access to history of my accounts on Masa Wallet or Station. I'd like to at least have a link to Massa Explorer to view my address activity in 1-click after I sign transactions.

User flow

• Come to MW homepage
• See an icon or a link 'View on explorer' for the selected account. Example:

Additionally, on each 'successfully signed' wails screen, we can add a link to operation pages on Explorer
How to
tbd

Technical details
Give the technical insights so anyone in the team can tackle the tasks - Dev

QA testing
Does this task require some QA tests ?
If yes, explain how to validate it

[qdrn]

Maybe not directly related but it would be nice to be able to click on the "Yeah, ..." when we perform the tx to see it on the explorer. I know it would save me a few clicks each time I transfer tokens (few times a day).