Remove backup-manager change alert from website

Removed the prominent backup-manager change notification section
from the main website as it's an internal technical change that
doesn't warrant a major alert on the marketing page.

The change is still documented in the README.md for technical users,
but the website now focuses on core features rather than internal
package reorganization details.

Author: franckferman

docs/index.html

@@ -418,12 +418,6 @@ <h4 style="color: var(--accent); margin-bottom: 1rem;">🔄 Smart Mapping</h4>
     </div>
   </div>
 
-  <div style="background: linear-gradient(135deg, var(--accent-faded), transparent); border: 1px solid var(--accent); border-radius: 8px; padding: 1.5rem;">
-    <h4 style="color: var(--accent); margin-bottom: 1rem;">⚠️ Important: backup-manager Changes</h4>
-    <p style="margin-bottom: 0.5rem;"><strong>Previously:</strong> backup-manager was in server profile (37 packages)</p>
-    <p style="margin-bottom: 0.5rem;"><strong>Now:</strong> backup-manager moved to enterprise profile (60 packages)</p>
-    <p style="color: var(--muted); margin: 0;"><strong>Rationale:</strong> Modern servers use cloud backup, containers, or infrastructure-as-code. Traditional backup-manager fits better with enterprise compliance scenarios.</p>
-  </div>
 </div>
 </div>