build(compose): pass "sentry_dsn" from host env to container env

docker-compose.yml

@@ -11,6 +11,7 @@ services:
     environment:
       host: ${host:-0.0.0.0}
       port: ${port:-8080}
+      sentry_dsn: ${sentry_dsn}
       tg_auth_wsdl: "https://textgridlab.org/1.0/tgauth/wsdl/tgextra.wsdl"
       tg_auth_address: "https://textgridlab.org/1.0/tgauth/tgextra.php"
       tg_nav_address: "https://textgridlab.org/1.0/tgsearch/navigation/"