feat(home): remove hero title heading

Drop the h1 title from the homepage hero block, leaving the taglines as
the leading content.

Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Andrei Kvapil <kvapss@gmail.com>

Author: kvaps

content/en/_index.html

@@ -59,7 +59,7 @@
 ---
 
 <div class="hero-gitops">
-  {{% blocks/hero title="Cozystack: Free Cloud Platform based on Kubernetes" color="primary"
+  {{% blocks/hero color="primary"
   height="auto" link_title="Get started" link_url="/docs/get-started/" %}}
   Transform a set of bare metal servers into an intelligent system with a simple REST API for spawning Kubernetes clusters, Databases-as-a-Service, virtual machines, load balancers, HTTP caching services, and other services with ease.