Fix ingress implementation with proper s6 services

Co-authored-by: alexbelgium <44178713+alexbelgium@users.noreply.github.com>

seerr/rootfs/etc/services.d/nginx/run

@@ -0,0 +1,14 @@
+#!/usr/bin/with-contenv bashio
+# shellcheck shell=bash
+set -e
+# ==============================================================================
+
+# Set variables
+slug=seerr
+port=5055
+
+# Wait for seerr to become available
+bashio::net.wait_for "$port" localhost 900
+
+bashio::log.info "Starting NGinx..."
+exec nginx