fix(gateway): Add default RUST_LOG level to Docker-deployed Gateways (#5639)

This has been an issue for some time(!)

Fixes #5141

elixir/apps/web/lib/web/live/sites/new_token.ex

@@ -210,6 +210,7 @@ defmodule Web.Sites.NewToken do
         "--env #{key}=\"#{value}\""
       end),
       "--env FIREZONE_NAME=$(hostname)",
+      "--env RUST_LOG=str0m=warn,info",
       "#{Domain.Config.fetch_env!(:domain, :docker_registry)}/gateway:1"
     ]
     |> List.flatten()