feat: keep empty cells consistent empty

lib/mv_web/live/group_live/show.ex

@@ -304,16 +304,14 @@ defmodule MvWeb.GroupLive.Show do
                             </.link>
                           </td>
                           <td>
-                            <%= if member.email do %>
+                            <.maybe_value value={member.email} empty_sr_text={gettext("No email")}>
                               <a
                                 href={"mailto:#{member.email}"}
                                 class="link link-primary"
                               >
                                 {member.email}
                               </a>
-                            <% else %>
-                              <span class="text-base-content/50 italic">—</span>
-                            <% end %>
+                            </.maybe_value>
                           </td>
                           <%= if can?(@current_user, :update, @group) do %>
                             <td>