Add EOS Powerup Link on Front-End

[DJSTRIKANOVA]

Makes it easier to get a power-up for people if there is a link on the front-end they can just click, rather than learning about powerups independently.

[Jaïr Zijp]

I agree, good point. We should show that link for users that are logged in with their EOS account.

[David Britt]

This got implemented not too long ago.
What do you think of the implementation and how can it be improved?