Use Emoji Hash & Identicon Ring in Desktop

[iurimatias]

Description

https://www.figma.com/file/IPpvkpDWabBKJTeo6bFop0/Kuba%E2%8E%9CDesktop-(rolled-back-version-to-recover-a-screen%2C-ignore)?node-id=1837%3A335130

tasks:

• use the API introduced by feat: add visual identity service status-go#2550
• Add to API generation of identicon ring #4951
• use the StatusSmartIdenticon UI component introduced by feat(@StatusSmartIdenticon): Add support for color rings in StatusSmartIdenticon StatusQ#553

Acceptance Criteria

• unknown contacts should display the identicon ring
• added contacts should not display the identicon ring
• should comply with spec at https://github.com/status-im/feature-specs/pull/42/files#diff-be3d528e707e2e0b06d2d9bc89a375b4634c43c81cbb5809244a4c263e2883ffR96