[UX] Loop In, Loop Out - Flows / Introduction

[diogorsergio]

Clean up PR. All the commits inside have already been agreed and are in development.

Loop In:

• Step 1: Amount To Loop-In
• Step 2: Confirm Quotes
• Step 3: Loop-In Status

Loop Out:

• Step 1: Amount to Loop-Out
• Step 2: Confirm Quotes
• Step 3: Withdrawal Address
• Step 4: Loop-Out Status