feat: (config) improve web & management configuration

[anzz1]

• Put the management server/service under its own configuration header, make it possible to enable/disable it

• Allow configuring what interface the web and management services are bound to
  For example, you could bind management to 127.0.0.1 (localhost) so setup/prometheus aren't accessible from outside internet, you could ingest prometheus stats locally or put it behind nginx reverse proxy or whatever

• Fix app.ts easyStartup not respecting the login/friend/logger enabled configuration option.

• Add configuration options for chat logging

[anzz1]

this isn't actually working yet, i meant to only bind the web server, not the web socket server. 

edit: never mind, it works fine. just needed to properly pass the websocket, like this in nginx

location / {
    proxy_pass        http://localhost:8888/;
    proxy_set_header  Upgrade $http_upgrade;
    proxy_set_header  Connection "upgrade";
}