Inform user when sending coins to same from:to address

[loonggamma]

Context
I can send MAS coin where sender and reciever address are the same.

This is not an issue, however for better UX the wallet should display a warning to user that sender and recipient address is the same, hence he will only lose coins for fees.

User flow
Applies to sending:

1. Via send functionality
2. Via payment link functionality.

How to

• recipient address provided by the user is the same as 'from' address
• display warning message "From and To wallet addresses are the same. You will lose coins on transaction fees."
• button to confirm this action should say 'Send anyway' when this warning is displayed.

List the step-by-step to get it do if needed - PM

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

[loonggamma]

@Thykof @peterjah cc

[pivilartisant]

This seems like a pure Front-End task

[loonggamma]

@LucasF243 we'll need designs here