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/proxy_params.conf

@@ -1,16 +0,0 @@
-proxy_http_version          1.1;
-proxy_ignore_client_abort   off;
-proxy_read_timeout          86400s;
-proxy_redirect              off;
-proxy_send_timeout          86400s;
-proxy_max_temp_file_size    0;
-
-proxy_hide_header X-Frame-Options;
-proxy_set_header Accept-Encoding "";
-proxy_set_header Connection $connection_upgrade;
-proxy_set_header Upgrade $http_upgrade;
-proxy_set_header Host $http_host;
-proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-proxy_set_header X-Forwarded-Proto $scheme;
-proxy_set_header X-NginX-Proxy true;
-proxy_set_header X-Real-IP $remote_addr;