feat: improve rules_js parity

js/BUILD.bazel

@@ -0,0 +1,12 @@
+load("@bazel_skylib//:bzl_library.bzl", "bzl_library")
+
+package(default_visibility = ["//visibility:public"])
+
+exports_files(["defs.bzl"])
+
+bzl_library(
+    name = "defs_bzl",
+    srcs = ["defs.bzl"],
+    visibility = ["//visibility:public"],
+    deps = ["//internal:js_compat_bzl"],
+)