mobilizon/lib/web/templates/email/group_membership_approval.text.eex

<%= gettext "You're in!" %>
==
<%= gettext "Your membership request for group %{group} has been approved.", group: Mobilizon.Actors.Actor.display_name(@group) %>

<%= ~p"/@#{Mobilizon.Actors.Actor.preferred_username_and_domain(@group)}" |> url() |> URI.decode() %>