Remove ingress support from Seerr and add back normal webui

- Set ingress: false and add webui URL in config.yaml
- Remove nginx from Dockerfile PACKAGES
- Remove nginx ingress init script, nginx config, and nginx service

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

seerr/rootfs/etc/nginx/includes/resolver.conf

@@ -1 +0,0 @@
-resolver 127.0.0.11 ipv6=off;