Update Unity documentation

[fuzzybinary]

What does this PR do? What is the motivation?

Updates Unity setup documentation with more information and corrects a few pieces.

Include a screenshot of the Unity setup UI.

Merge instructions

• [x] Please merge after reviewing

Additional notes

[github-actions[bot]]

Preview links (active after the build_preview check completes)

New or renamed files

• https://docs-staging.datadoghq.com/jward/unity-doc-update/real_user_monitoring/mobile_and_tv_monitoring/troubleshooting/unity

Modified Files

• https://docs-staging.datadoghq.com/jward/unity-doc-update/real_user_monitoring/mobile_and_tv_monitoring/setup/unity

[drichards-87]

Created DOCS-8476 for Docs Team review.

[plousada]

We should probably add a troubleshooting page with some common information regarding setting the tracking consent in order to see data, a statement saying we don't support the editor, consoles or desktop, and a snippet for setting SDK verbosity level.

[jhgilbert]

Hi @fuzzybinary, we don't describe future features or support in the docs, so I removed your note that said "Datadog plans on adding support for Open UPM after Beta." But I want to make sure to address the underlying problem you were trying to solve. Is there something we can say about the present situation (xyz is not supported) to make the situation clear to the user?

[fuzzybinary]

But I want to make sure to address the underlying problem you were trying to solve. Is there something we can say about the present situation (xyz is not supported) to make the situation clear to the user?

There's nothing we can add like that no. Open UPM is just a package repository, we just haven't yet.

[jhgilbert]

@plousada, did you want to take another look?