feat: Add a new enableAutoBreadcrumbTracking option

[kevinrenskers]

📜 Description

We're unifying the options, so breadcrumb tracking is also enabled via a boolean option enableAutoBreadcrumbTracking.

💡 Motivation and Context

Closes #427.

💚 How did you test it?

Unit test, also sample app.

📝 Checklist

• I reviewed the submitted code
• I added tests to verify the changes
• I updated the docs if needed
• Review from the native team if needed
• No breaking changes

🔮 Next steps

[github-actions]

	Fails
🚫	Please consider adding a changelog entry for the next release.

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

`Instructions and example for changelog`$

Please add an entry to CHANGELOG.md` to the "Unreleased" section under the following heading:

To the changelog entry, please add a link to this PR (consider a more descriptive message):`

- Add a new enableAutoBreadcrumbTracking option(#1958)

If none of the above apply, you can opt out by adding _#skip-changelog_ to the PR description.

Generated by 🚫 dangerJS against 2090a79

[philipphofmann]

Only a few missing tests. Thanks 👌

[philipphofmann]

m: Please add a test for this new functionality.

[kevinrenskers]

It's still a draft PR 😅

[philipphofmann]

Yes, but I didn't see anything apart from the missing tests, so I added a comment to not forget about it.

[kevinrenskers]

Do we need to update any docs for this?

[philipphofmann]

LGTM, thanks 🙏