Implement native iOS widget for mobile app

[NeOMakinG]

Initial spike:
SS-5190

Start from the POC and finish the implementation for both coingecko endpoints and watch list (should be doable one at once)

AC:

• Request design from product
• Implement visually
• Add more lists from coingecko (the same we have on mobile on the swapper page)
• Add watch list messages/features

iOS Widgets (Figma)

[twblack88]

We'll come back to this guy whenever, marking as low and unblocking via product. A nice to have conversion feature instead of marquee thing to kick off.