Better visual feedback on redeeming a voucher

[Borgarsy]

Describe the problem you are experiencing
Whenever someone redeems a voucher it can sometimes be difficult to see if it gets redeemed to due very little visual feedback.

Describe the solution you'd like
A clear visual feedback well visible over the counter

Describe alternatives you've considered
A popup or colour change that lasts a few seconds so it's easy to see.

Additional context
Add any other context or screenshots about the feature request here.

[EricSvebakk]

Enhancements were made when handling issue #29, What do you think @Borgarsy?

[Borgarsy]

Might be a stupid question but i can't find the pull request neither open nor closed. Has it been pushed to prod? Additionally I am unable to give myself vouchers on the test server so I would be unable to test it.