Tidy controller method

Author: abbiemery

src/blueapi/cli/cli.py

@@ -254,15 +254,16 @@ def controller(
     ctx.ensure_object(dict)
     ctx.obj["fmt"] = OutputFormat(output)
 
-    _load_config(ctx, None)
-    config: ApplicationConfig = ctx.obj["config"]
+    config: ApplicationConfig = ConfigLoader(ApplicationConfig).load()
 
     if url is not None:
         config.api.url = HttpUrl(url)
 
     tmp_client = BlueapiClient.from_config(config)
     config.stomp = tmp_client.get_stomp_config()
 
+    ctx.obj["config"] = config
+    set_up_logging(config.logging)
     ctx.obj["client"] = BlueapiClient.from_config(config)