Feat: army id and dim travel button

[palomato]

Can't always remember which army I want to raid a particular realm. I often select an army that is already in transit, but don't realize until signing the transaction fails. When selecting an army to travel:

1) Request army identifier appear near each army (i.e. Army 1) 2) Request 'Travel' button be dimmed and unclickable for armies already in transit

[ponderingdemocritus]

@palomato pls close if happy :)

[palomato]

:crown: :100: