fix: add timeout to resolve animation mount issue

[grvgoel81]

Description

• Fix: add timeout to resolve animation mount issue
• Jira: https://consensyssoftware.atlassian.net/browse/SL-332

Changelog

CHANGELOG entry: null

Related issues

Fixes:

• Fix: add timeout to resolve animation mount issue

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

After

Screen.Recording.2025-11-19.at.3.06.41.PM.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

Delays onboarding animation start by 100ms and clears the timeout on unmount to prevent mount-related issues.

• Onboarding (app/components/Views/Onboarding/index.js):
  • Delay starting startOnboardingAnimation via setTimeout(…, 100) after interactions, storing the id in animationTimeoutId.
  • Clear the pending timeout in componentWillUnmount to avoid running after unmount.

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[github-actions]

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[LeVinhGithub]

lgtm QA

[github-actions]

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
83.3% Coverage on New Code
0.0% Duplication on New Code

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