Multi-modal Selene

We will present different UI based on what "mode" the user selects.

1. Payments Mode: default, current UI with our bread-and-butter Wallet screen. (i.e. app as of 2024.06 version)

2. Vendor Mode: similar to Payments mode, but with more of a merchant focus. Landscape-based UI where main payment screen is focused around a large "request amount" and a large numeric keypad. Over time, add expanded transaction history and invoicing options.

3. Finance Mode: focused around DeFi and DeBanking (Assets Tab).

4. Social Mode: focused around BChat.

In addition, we will have "Simple" and "Advanced" variants for each mode. This allows users more flexibility in how they use Selene and interact with the BCH ecosystem.