style: highlight selected table and add tooltip

lib/mv_web/live/group_live/index.ex

@@ -62,6 +62,7 @@ defmodule MvWeb.GroupLive.Index do
             rows={@groups}
             row_id={fn group -> "group-#{group.id}" end}
             row_click={fn group -> JS.navigate(~p"/groups/#{group.slug}") end}
+            row_tooltip={gettext("Click for group details")}
           >
             <:col :let={group} label={gettext("Name")}>
               {group.name}