Adding ghost and fixing compose .env setup.

src/db-init.sql

@@ -36,7 +36,8 @@ create table user_selected_apps(
        instance_id integer not null references instances on delete cascade,
        wg_easy_version varchar(100),
        nextcloud_version varchar(100),
-       log_viewer_version varchar(100)
+       log_viewer_version varchar(100),
+       ghost_version varchar(100)
        );
 create unique index user_selected_apps_user_id_instance_id_idx on user_selected_apps (user_id, instance_id);