Member LiveViews: row_id and data-testid for actions

Table row_id for scoped selectors; data-testid on New/Edit/Delete.

lib/mv_web/live/member_live/show.ex

@@ -40,7 +40,11 @@ defmodule MvWeb.MemberLive.Show do
         </h1>
 
         <%= if can?(@current_user, :update, @member) do %>
-          <.button variant="primary" navigate={~p"/members/#{@member}/edit?return_to=show"}>
+          <.button
+            variant="primary"
+            navigate={~p"/members/#{@member}/edit?return_to=show"}
+            data-testid="member-edit"
+          >
             {gettext("Edit Member")}
           </.button>
         <% end %>