docs: refine Trino lakehouse GCS docs

[aryahassibi]

Updates Trino lakehouse docs for GCS.

• add concise Trino+GCS and Iceberg+Nessie+GCS guides
• mark Glue+GCS unsupported
• sync the getting-started lakehouse support chart

[greptile-apps]

_{2 files reviewed, 1 comment}

_{Edit Code Review Agent Settings | Greptile}

[greptile-apps]

broken link: #guide-trino-gcs-general anchor doesn't exist in trino.md

Suggested change

Trino supports lakehouse access via the [Iceberg connector](https://trino.io/docs/current/connector/iceberg.html) with [Glue](https://aws.amazon.com/glue/) and [Nessie](https://projectnessie.org/) catalogs. Configuration happens in Trino, while Bruin connection config remains unchanged. See [Trino lakehouse support](../platforms/trino.md#lakehouse-support), [Trino + GCS (general)](../platforms/trino.md#guide-trino-gcs-general), [Glue + S3 guide](../platforms/trino.md#guide-glue-s3), [Nessie (in-memory) + S3 guide](../platforms/trino.md#guide-nessie-in-memory-s3), and [Nessie (in-memory) + GCS guide](../platforms/trino.md#guide-nessie-in-memory-gcs).

Trino supports lakehouse access via the [Iceberg connector](https://trino.io/docs/current/connector/iceberg.html) with [Glue](https://aws.amazon.com/glue/) and [Nessie](https://projectnessie.org/) catalogs. Configuration happens in Trino, while Bruin connection config remains unchanged. See [Trino lakehouse support](../platforms/trino.md#lakehouse-support), [Glue + S3 guide](../platforms/trino.md#guide-glue-s3), [Nessie (in-memory) + S3 guide](../platforms/trino.md#guide-nessie-in-memory-s3), and [Nessie (in-memory) + GCS guide](../platforms/trino.md#guide-nessie-in-memory-gcs).

Prompt To Fix With AI

This is a comment left during a code review.
Path: docs/getting-started/lakehouse.md
Line: 42

Comment:
broken link: `#guide-trino-gcs-general` anchor doesn't exist in trino.md

```suggestion
Trino supports lakehouse access via the [Iceberg connector](https://trino.io/docs/current/connector/iceberg.html) with [Glue](https://aws.amazon.com/glue/) and [Nessie](https://projectnessie.org/) catalogs. Configuration happens in Trino, while Bruin connection config remains unchanged. See [Trino lakehouse support](../platforms/trino.md#lakehouse-support), [Glue + S3 guide](../platforms/trino.md#guide-glue-s3), [Nessie (in-memory) + S3 guide](../platforms/trino.md#guide-nessie-in-memory-s3), and [Nessie (in-memory) + GCS guide](../platforms/trino.md#guide-nessie-in-memory-gcs).
```

How can I resolve this? If you propose a fix, please make it concise.