MBL-1390: Add Stripe Link

[amy-at-kickstarter]

📲 What

A description of the change.

🤔 Why

Some background context on why the change is needed.

🛠 How

More in-depth discussion of the change or implementation.

👀 See

Trello, screenshots, external resources?

Before 🐛	After 🦋

♿️ Accessibility

• [ ] Tap targets use minimum of 44x44 pts dimensions
• [ ] Works with VoiceOver
• [ ] Supports Dynamic Type

🏎 Performance

• [ ] Optimized Blended Layers (screenshots)

✅ Acceptance criteria

• [ ] Steps to test this feature
• [ ] Environment to test on
• [ ] Issues to look out for

⏰ TODO

• [ ] Got planned refactors to come
• [ ] Will add more tests
• [ ] Need feedback on a design