[project-base] Revision of .env files (#3603)

storefront/.env

@@ -11,7 +11,14 @@ GTM_ID=
 GRAPHQL_REDIS_CACHE=1
 ERROR_DEBUGGING_LEVEL=no-debug
 SHOW_SYMFONY_TOOLBAR=0
+
+# LUIGIS_BOX_ENABLED_DOMAIN_IDS=1,2
+# LUIGIS_BOX_TRACKER_IDS_BY_DOMAIN_IDS='{"1": "<TRACKER_ID_FOR_DOMAIN_1>", "2": "<TRACKER_ID_FOR_DOMAIN_2>", ...}'
 LUIGIS_BOX_ENABLED_DOMAIN_IDS=
+
+# SHOULD_USE_DEFER=0 to disable defer locally to fix Suspense boundary error
+# https://shopsys.atlassian.net/browse/SSP-2779
 SHOULD_USE_DEFER=1
+
 USERSNAP_PROJECT_API_KEY=
 USERSNAP_STOREFRONT_ENABLED_BY_DEFAULT=0