[Refactoring]: Avatar/UserAvatar/AvatarWithAddress

[Nortsova]

Steps to reproduce

While working on #3624, I realized that there's no reusable component that accepts an address and renders an avatar alongside it. However, similar functionality exists in different places. This task aims to refactor and unify the approach.

Expected behaviour

I am pretty sure we can create a nice, reusable component that includes an avatar, address, a warning indicator (or status prop), and a verification tick (we can go with general {icon} instead of a specific verification icon). The address could be validated and optionally masked or shortened.

Masked address: https://github.com/JoinColony/colonyCDapp/pull/3624/files#diff-88fbbc8dcc49fa2725c3362d51653a0d5a0d26e6906aaf87cb1d13991e724343

Actual behaviour

Duplications and similar but different logic: