feat(feedV2): consolidate earn types into deposit and withdraw

[jeanregisser]

Description

Test plan

Related issues

• Fixes #[issue number here]

Backwards compatibility

Network scalability

If a new NetworkId and/or Network are added in the future, the changes in this PR will:

• [ ] Continue to work without code changes, OR trigger a compilation error (guaranteeing we find it when a new network is added)