RGB UI consolidation

[cakesoft-shashank]

We need to review and restructure Tribe RGB UI/UX

• [x] - RGB-ed

Add intro screen to let user know about RGB protocol, how it works and how its integrated with tribe.

• [ ] User should be notified before creating new UTXOs

• [ ] - Optional RGB

User can choose to opt in to use RGB?

[Deveshshankar]

https://xd.adobe.com/view/2af996b7-0e6e-453b-9c82-c735e28a43e7-7faa/screen/c8742d67-0105-43a7-be68-c9790da57e2a/specs/

[akshay8551]

[akshay8551]