feat: migrate FundActionMenu to BottomSheet

[kirillzyusko]

Description

Migrate BottomSheet in FundActionMenu to DSRN package usage.

Changelog

CHANGELOG entry: null

Related issues

Fixes: https://consensyssoftware.atlassian.net/browse/DSYS-639

Manual testing steps

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

Before

Simulator.Screen.Recording.-.iPhone.17.Pro.-.2026-03-31.at.15.01.54.mov

After

Simulator.Screen.Recording.-.iPhone.17.Pro.-.2026-03-31.at.14.59.17.mov

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• 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 format if applicable
• I've applied the right labels on the PR (see labeling guidelines). 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.

---

Note

Medium Risk
Swaps the BottomSheet implementation and changes back-navigation wiring, which could affect dismissal/navigation behavior at runtime. Updates are localized to FundActionMenu plus its unit tests.

Overview
Migrates FundActionMenu to use BottomSheet from @metamask/design-system-react-native instead of the deprecated in-repo component, and wires bottom-sheet dismissal to navigation by passing navigation.goBack into the sheet.

Updates the test suite to stop mocking the old BottomSheet, mock safe-area context for the new implementation, and assert against a new bottom-sheet testID (fund-action-menu-bottom-sheet).

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[github-actions]

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[georgewrmarshall]

Excellent work @kirillzyusko! Removing the unnecessary mocking is really nice! Left one small comment but otherwise LGTM!

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[georgewrmarshall]

LGTM!

[github-actions]

🔍 Smart E2E Test Selection

• Selected E2E tags: SmokeRamps, SmokeWalletPlatform
• Selected Performance tags: None (no tests recommended)
• Risk Level: medium
• AI Confidence: 82%

click to see 🤖 AI reasoning details

E2E Test Selection:
The changes are focused on the FundActionMenu component:

1. BottomSheet migration: The BottomSheet import was moved from the internal component library (../../../component-library/components/BottomSheets/BottomSheet) to @metamask/design-system-react-native. This is a component library migration that could affect the bottom sheet's behavior (open/close animations, dismissal, gesture handling).

2. Added goBack prop: The new BottomSheet from the design system requires an explicit goBack prop for navigation dismissal. This is a behavioral change — the bottom sheet now uses navigation.goBack when dismissed, which could affect how the FundActionMenu closes in various flows.

3. Added testID: Minor change for test identification.

SmokeRamps is selected because FundActionMenu is the primary entry point for buy/sell (ramp) flows. The BottomSheet migration and goBack behavior change could affect how the ramp flow initiates and how the menu dismisses.

SmokeWalletPlatform is selected because FundActionMenu is also accessed from the wallet home actions and asset details screens, which are core wallet platform features. The goBack navigation change could affect wallet navigation flows.

No other tags are needed — the changes don't touch swap/bridge confirmations directly, don't affect network management, accounts, or identity features.

Performance Test Selection:
The changes are a component library migration (BottomSheet source change) and addition of a navigation prop. There is no data loading, list rendering, state management, or initialization change that would impact app performance metrics. No performance tests are needed.

View GitHub Actions results

[github-actions]

✅ E2E Fixture Validation — Schema is up to date
17 value mismatches detected (expected — fixture represents an existing user).
View details

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud