## What
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* Describe what the change is solving. Link all GitHub issues related to
this change.
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This is minor docs cleanup after we released the Iowa region on GCP.
There's not much to update, but it did prompt me to take a look at a few
things, update some URLs, and reframe the discussion of how Airbyte is
deployed to Cloud.
Companion change to this UI update, but there is no dependency between
them. https://github.com/airbytehq/airbyte-platform-internal/pull/17923
## How
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* Describe how code changes achieve the solution.
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## Review guide
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1. `x.py`
2. `y.py`
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## User Impact
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* What is the end result perceived by the user?
* If there are negative side effects, please list them.
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## Can this PR be safely reverted and rolled back?
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- [x] YES 💚
- [ ] NO ❌
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