refactor: review remarks

lib/mv_web/components/layouts.ex

@@ -17,16 +17,24 @@ defmodule MvWeb.Layouts do
   Renders the public (unauthenticated) page layout: header with logo + "Mitgliederverwaltung" left,
   club name centered, language selector right; plus main content and flash group. Use for sign-in, join, and join-confirm pages so they
   share the same chrome without the sidebar or authenticated layout logic.
+
+  Pass optional `:club_name` from the parent (e.g. LiveView mount) to avoid a settings read in the component.
   """
   attr :flash, :map, required: true, doc: "the map of flash messages"
+
+  attr :club_name, :string,
+    default: nil,
+    doc: "optional; if set, avoids get_settings() in the component"
+
   slot :inner_block, required: true
 
   def public_page(assigns) do
     club_name =
-      case Mv.Membership.get_settings() do
-        {:ok, s} -> s.club_name || "Mitgliederverwaltung"
-        _ -> "Mitgliederverwaltung"
-      end
+      assigns[:club_name] ||
+        case Mv.Membership.get_settings() do
+          {:ok, s} -> s.club_name || "Mitgliederverwaltung"
+          _ -> "Mitgliederverwaltung"
+        end
 
     assigns = assign(assigns, :club_name, club_name)