feat: add accessible empty value also to member fields

lib/mv_web/live/member_live/show.ex

@@ -237,7 +237,7 @@ defmodule MvWeb.MemberLive.Show do
     """
   end
 
-  # Renders a mailto link if email is present, otherwise renders nothing
+  # Renders a mailto link if email is present, otherwise renders empty value placeholder
   attr :email, :string, required: true
   attr :display, :string, default: nil
 
@@ -255,9 +255,7 @@ defmodule MvWeb.MemberLive.Show do
       </a>
       """
     else
-      ~H"""
-      <span class="text-base-content/50 italic">—</span>
-      """
+      render_empty_value()
     end
   end
 
@@ -265,8 +263,8 @@ defmodule MvWeb.MemberLive.Show do
   # Helper Functions
   # -----------------------------------------------------------------
 
-  defp display_value(nil), do: ""
-  defp display_value(""), do: ""
+  defp display_value(nil), do: render_empty_value()
+  defp display_value(""), do: render_empty_value()
   defp display_value(value), do: value
 
   defp format_address(member) do
@@ -348,11 +346,16 @@ defmodule MvWeb.MemberLive.Show do
 
   defp format_custom_field_value(value, _type), do: to_string(value)
 
-  # Renders placeholder for empty custom field values
+  # Renders accessible placeholder for empty values
+  # Uses translated text for screen readers while maintaining visual consistency
+  # The visual "—" is hidden from screen readers, while the translated text is only visible to screen readers
   defp render_empty_value do
-    assigns = %{}
+    assigns = %{text: gettext("Not set")}
     ~H"""
-    <span class="text-base-content/50 italic">—</span>
+    <span class="text-base-content/50 italic">
+      <span aria-hidden="true">—</span>
+      <span class="sr-only">{@text}</span>
+    </span>
     """
   end
 end