Update Helm install feature status in FAQ (#12628)

* update Helm install to Beta

Signed-off-by: Faseela K <faseela.k@est.tech>

* update page description

Signed-off-by: Faseela K <faseela.k@est.tech>

* Change upgrade description for Helm

Signed-off-by: Faseela K <faseela.k@est.tech>

---------

Signed-off-by: Faseela K <faseela.k@est.tech>

content/en/about/faq/setup/install-method-selection.md

@@ -40,7 +40,7 @@ The following lists some of the pros and cons of each of the available methods:
     - UX is less streamlined compared to `istioctl install`.
     - Error reporting is not as robust as `istioctl install` for the apply step.
 
-1. [Install using Helm (alpha)](/docs/setup/install/helm/)
+1. [Install using Helm](/docs/setup/install/helm/)
 
     Using Helm charts allows easy integration with Helm based workflows and automated resource pruning during upgrades.
 

content/en/docs/setup/install/helm/index.md

@@ -1,7 +1,7 @@
 ---
 title: Install with Helm
 linktitle: Install with Helm
-description: Install and configure Istio for in-depth evaluation.
+description: Instructions to install and configure Istio in a Kubernetes cluster using Helm.
 weight: 30
 keywords: [kubernetes,helm]
 owner: istio/wg-environments-maintainers

content/en/docs/setup/upgrade/helm/index.md

@@ -1,7 +1,7 @@
 ---
 title: Upgrade with Helm
 linktitle: Upgrade with Helm
-description: Upgrade and configure Istio for in-depth evaluation.
+description: Instructions to upgrade Istio using Helm.
 weight: 27
 keywords: [kubernetes,helm]
 owner: istio/wg-environments-maintainers