Fix Mastodon signup/password/confirmation links

Adds ENV vars for our custom fix in b916182bc1

fixes #562

site-cookbooks/kosmos-mastodon/templates/default/env.erb

@@ -44,6 +44,9 @@ LDAP_SEARCH_FILTER='<%= @ldap[:search_filter] %>'
 LDAP_UID_CONVERSION_ENABLED=<%= @ldap[:uid_conversion_enabled] %>
 LDAP_UID_CONVERSION_SEARCH=<%= @ldap[:uid_conversion_search] %>
 LDAP_UID_CONVERSION_REPLACE=<%= @ldap[:uid_conversion_replace] %>
+SSO_ACCOUNT_SIGN_UP=<%= @sso_account_sign_up_url %>
+SSO_ACCOUNT_RESET_PASSWORD=<%= @sso_account_reset_password_url %>
+SSO_ACCOUNT_RESEND_CONFIRMATION=<%= @sso_account_resend_confirmation_url %>
 <% end %>
 
 # Optional asset host for multi-server setups