ui: remove inactive command palette affordance

apps/ui/css/layout.css

@@ -65,18 +65,6 @@
   gap: 10px;
   margin-left: auto;
 }
-.nav-kbd {
-  display: flex;
-  align-items: center;
-  gap: 4px;
-  border: 1px solid var(--border);
-  border-radius: var(--radius);
-  padding: 4px 9px;
-  font-size: 12px;
-  color: var(--text-muted);
-  background: var(--bg-overlay);
-  cursor: pointer;
-}
 .nav-icon-btn {
   width: 32px;
   height: 32px;
@@ -223,7 +211,6 @@
 @media (max-width: 720px) {
   .navbar { padding: 0 16px; }
   .nav-links { display: none; }
-  .nav-kbd { display: none; }
   .nav-hamburger { display: flex; }
   .mobile-nav { display: block; }