[RUM-6774] Update and expand Unity documentation

[fuzzybinary]

What does this PR do? What is the motivation?

Unity is moving forward in public beta, so we want to expand on the current documentation offerings and bring it up to the level of other mobile SDKs

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/RUM-6774-unity-docs/logs/log_collection/unity
• https://docs-staging.datadoghq.com/jward/RUM-6774-unity-docs/real_user_monitoring/error_tracking/mobile/unity
• https://docs-staging.datadoghq.com/jward/RUM-6774-unity-docs/real_user_monitoring/mobile_and_tv_monitoring/advanced_configuration/unity
• https://docs-staging.datadoghq.com/jward/RUM-6774-unity-docs/real_user_monitoring/mobile_and_tv_monitoring/data_collected/unity

Modified Files

• https://docs-staging.datadoghq.com/jward/RUM-6774-unity-docs/error_tracking/rum
• https://docs-staging.datadoghq.com/jward/RUM-6774-unity-docs/real_user_monitoring/mobile_and_tv_monitoring/mobile_vitals/
• https://docs-staging.datadoghq.com/jward/RUM-6774-unity-docs/real_user_monitoring/mobile_and_tv_monitoring/setup/unity

[jhgilbert]

Thanks for this update, @fuzzybinary! I've filed a ticket for the docs team to review it.

[rtrieu]

/merge

[dd-devflow[bot]]

Devflow running: /merge

View all feedbacks in Devflow UI.

---

2024-11-14 18:24:51 UTC :information_source: MergeQueue: waiting for PR to be ready

This merge request is not mergeable yet, because of pending checks/missing approvals. It will be added to the queue as soon as checks pass and/or get approvals. Note: if you pushed new commits since the last approval, you may need additional approval. You can remove it from the waiting list with /remove command.

---

2024-11-14 18:24:56 UTC :information_source: MergeQueue: waiting for PR to be ready

This merge request is not mergeable yet, because of pending checks/missing approvals. It will be added to the queue as soon as checks pass and/or get approvals. Note: if you pushed new commits since the last approval, you may need additional approval. You can remove it from the waiting list with /remove command.

---

2024-11-14 22:24:54 UTC :warning: MergeQueue: This merge request was unqueued

This merge request was unqueued

[rtrieu]

/merge

[dd-devflow[bot]]

Devflow running: /merge

View all feedbacks in Devflow UI.

---

2024-11-18 15:11:04 UTC :information_source: MergeQueue: pull request added to the queue

The median merge time in master is 30m.