…70.0 (#27259)

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## **Description**

Updates a few design elements In Market Insights.

## **Changelog**

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## **Related issues**

Fixes:

## **Manual testing steps**

```gherkin
Feature: my feature name

  Scenario: user [verb for user action]
    Given [describe expected initial app state]

    When user [verb for user action]
    Then [describe expected outcome]
```

## **Screenshots/Recordings**

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before and after of your change. -->

### **Before**

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### **After**

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## **Pre-merge author checklist**

- [ ] I've followed [MetaMask Contributor
Docs](https://github.com/MetaMask/contributor-docs) and [MetaMask Mobile
Coding
Standards](https://github.com/MetaMask/metamask-mobile/blob/main/.github/guidelines/CODING_GUIDELINES.md).
- [ ] I've completed the PR template to the best of my ability
- [ ] I've included tests if applicable
- [ ] I've documented my code using [JSDoc](https://jsdoc.app/) format
if applicable
- [ ] I've applied the right labels on the PR (see [labeling
guidelines](https://github.com/MetaMask/metamask-mobile/blob/main/.github/guidelines/LABELING_GUIDELINES.md)).
Not required for external contributors.

## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Medium Risk**
> Adds new Buy navigation and CAIP-asset parsing from Market Insights,
plus a `react-native-video` background; these touch navigation/asset-id
construction and could break CTAs or tests if ramp/swap inputs are
wrong.
> 
> **Overview**
> Updates the Market Insights full-screen view to include an
auto-playing light/dark background video and replaces the single Trade
CTA with side-by-side **Swap** and **Buy** buttons. Swap interaction
tracking is renamed from `trade` to `swap`, and a new `buy` interaction
event is tracked; Buy routes through ramp navigation with best-effort
`assetId` derivation from the token address/chain.
> 
> Polishes several Market Insights components/styles (entry card
header/disclaimer layout, icon sizing, feedback copy/typography, bottom
sheet source list spacing) and tweaks behavior so tapping a source
closes the trend sources sheet. Tests and Jest config are updated
accordingly, including new mocks for `.mp4` assets and
`react-native-video`.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
d1e6ce2. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->