hash hero address icon

[AlexChien]

When a user's address is connected, the avatar icon should use the same hash hero image as used in EvolutionLand to keep a consistent feel. @WoeOm

Also, is it possible to customize the hash pie icon theme from the space file? If not (probably), it's still fine for the time being, although when the user goes to the voting page, it might feel a bit different. @xiaoch05