docs: mark per-host request transforms as public beta (#263)

* docs: mark per-host request transforms as public beta

* docs: update support link to dashboard

Author: beran-t

docs/network/internet-access.mdx

@@ -221,8 +221,11 @@ sandbox = Sandbox.create(
 ### Per-host request transforms
 
 <Note>
-Per-host request transforms are currently in private beta.
-If you'd like access, please reach out to us at [support@e2b.dev](mailto:support@e2b.dev).
+Per-host request transforms are currently in public beta. You can start using them right away, no need to request access.
+
+Please keep in mind that this feature is still in active development, and the features and ways of interacting with it might change during this period.
+
+If you have any questions or feedback, please [reach out to us](https://e2b.dev/dashboard?support=true). Any input is greatly appreciated.
 </Note>
 
 You can register per-host rules under `network.rules` to apply transforms (for example, inject HTTP headers) on outbound requests matching a host. Rules are keyed by host and registering one does **not** grant egress on its own — the host must still be referenced via `allowOut` / `allow_out`.