Send screen: going back from 'Payment Path' should not retrigger animation

[myxmaster]

Describe your enhancement idea

When a payment was sent successfully, the phone vibrates and an animation is displayed. Since https://github.com/ZeusLN/zeus/pull/2345 you can directly go to 'Payment Path'. When you do that and then go back to the 'Send successfully' screen, the vibration and animation should not be triggered again since it suggests that something just happened (at least thats how I am interpreting it).