fix(tubearchivist): restart nginx after writing config

Debian auto-starts nginx on install with default config (port 80).
'enable --now' is a no-op if already running. Use explicit restart
to pick up our port 8000 config.

install/tubearchivist-install.sh

@@ -180,7 +180,8 @@ server {
     }
 }
 EOF
-systemctl enable -q --now nginx
+systemctl enable -q nginx
+systemctl restart nginx
 msg_ok "Configured Nginx"
 
 msg_info "Creating Services"