[UI] Display Group Tokens for User

[jose-garrofe]

Display user's Group Token balance on:

• My Group Tokens (New Page)
• Group Info Page
• Mint page.

NOTE: We need to use the Circles to Time Cicles formula to display the actual balance to the user. https://aboutcircles.com/t/conversion-from-crc-to-time-circles-and-back/463/3

Balance Screen (My Balance):

• Group Name
• Token address
• Symbol
• Your group balance

[pragalli]

Dev: 3 UI: 2 QA: 2

[LaimeJesus]

How to test

See UI designs: https://github.com/BootNodeDev/circles-groups-safe-app/pull/213

See DAPP logic: https://github.com/BootNodeDev/circles-groups-safe-app/pull/217

See latest changes (when user has no tokens): https://github.com/BootNodeDev/circles-groups-safe-app/pull/218