fix: check if returnTo is defined (release)

[Couto]

✅ Checklist

• npx changeset was attached.
• Covered by automatic tests.
• Impact of the changes:
  • ...

📝 Description

Check if returnTo is defined as a string before triggering the swap analytic.
Some sections of the application do not provide a returnTo value.

Screen.Recording.2024-11-28.at.08.57.16.mov

❓ Context

• JIRA or GitHub link:

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🧐 Checklist for the PR Reviewers

• The code aligns with the requirements described in the linked JIRA or GitHub issue.
• The PR description clearly documents the changes made and explains any technical trade-offs or design decisions.
• There are no undocumented trade-offs, technical debt, or maintainability issues.
• The PR has been tested thoroughly, and any potential edge cases have been considered and handled.
• Any new dependencies have been justified and documented.
• Performance considerations have been taken into account. (changes have been profiled or benchmarked if necessary)

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4 Skipped Deployments

Name	Status	Preview	Comments	Updated (UTC)
ledger-live-github-bot	⬜️ Ignored (Inspect)			Nov 28, 2024 9:30am
native-ui-storybook	⬜️ Ignored (Inspect)			Nov 28, 2024 9:30am
react-ui-storybook	⬜️ Ignored (Inspect)			Nov 28, 2024 9:30am
web-tools	⬜️ Ignored (Inspect)			Nov 28, 2024 9:30am

[live-github-bot]

Desktop Bundle Checks

Comparing cc3cff5 against 6d679f5.

🚀 renderer bundle size decreased (38.3mb -> 37.4mb). Thanks ❤️
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🚀 ethereum-cryptography/utils library is no longer duplicated in renderer
🚀 @ethereumjs/util library is no longer duplicated in renderer
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