Send button enable delay

[n13]

"There is a delay on the send button becoming clickable"

This is because we fetch the fee before the user can hit send.

Might be a UX problem... not sure if we can indicate this better... ?!

For now add progress circle to to the send button until we find a better solution

For later: I guess we could do a background fee check and go with that, before we know amount? Just use fake amount? But tha