docs(analytics): add screen_class to navigation screen tracking examples

[MoKhajavi75]

Description

Related issues

#4145

Release Summary

Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
  • Yes
• My change supports the following platforms;
  • Android
  • iOS
• My change includes tests;
  • e2e tests added or updated in packages/\*\*/e2e
  • jest tests added or updated in packages/\*\*/__tests__
• I have updated TypeScript types that are affected by my change.
• This is a breaking change;
  • Yes
  • No

Test Plan

---

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[mikehardy]

LGTM :-)

[mikehardy]

happened to be scanning the queue in between tasks and saw it right as it came in ;-)
Thanks for this!

[MoKhajavi75]

Thanks @mikehardy
I really appreciate your efforts ❤️