docs: stop mentioning virtual environments on the website (#830)

Author: kvlonge

website/public/index.html

@@ -406,7 +406,6 @@ <h2>Start simple</h2>
 							<li>No external state service, manifest files or account.</li>
 							<li>Try it locally on DuckDB, with no warehouse credentials.</li>
 							<li>Free and open source, with no paid tier.</li>
-							<li>Virtual environments for isolated previews and rollback, when you need them (alpha).</li>
 						</ul>
 						<div class="adapters" aria-label="Supported warehouses">
 							<span>DuckDB</span>

website/src/content/docs/docs/feature-comparison.mdx

@@ -67,7 +67,6 @@ SQLBuild, dbt, and SQLMesh are all SQL pipeline frameworks. They share common gr
 
 | Feature | SQLBuild | dbt | SQLMesh |
 |---------|----------|-----|---------|
-| Virtual environments | No. Build branches into their own schema, and copy relations between targets with `sqb clone` | No | Pointer swaps, no compute cost |
 | Data diffs | Full row-level data comparison across targets | No | Table diff |
 | Zero-copy cloning | `sqb clone` | No | No |
 
@@ -122,7 +121,7 @@ SQLBuild, dbt, and SQLMesh are all SQL pipeline frameworks. They share common gr
 |------|----------|
 | **SQLBuild** | Rigor-first SQL pipelines: compile-time verification, pre-promotion audit gating, multi-model tests, and local E2E replay by default. Opt into change-aware builds and warehouse-native state when full rebuilds get expensive, plus ingestion and Python nodes as the project grows. |
 | **dbt** | The most widely adopted SQL transformation framework with the largest adapter and community ecosystem. |
-| **SQLMesh** | State-managed pipelines with virtual environments, interval tracking, and cross-dialect transpilation. |
+| **SQLMesh** | State-managed pipelines with interval tracking and cross-dialect transpilation. |
 
 ## Not yet in SQLBuild