Slots game continuos spinning when spin button clicked continously!

Expected behavior

The Spin button will be disabled when the slot machine is rolling/spinning. and it will be enabled when the slot machine stops spinning.

Actual behavior

when you click the spin button continuously, the slot machine will continuously spin and available balance will be affected.

How to reproduce

1. Open Google Chrome and load up steemcasino.org
2. Click on Slots game
3. Place your bet
4. Play 2-3 games
5. Click spin button continuously!

• Device: ASUS X450CA
• Browser: Google Chrome Version 65.0.3325.181
• Operating system: Windows 10 Home

Recording Of The Bug

Note: Observe the available Balance