Expose js_modules via pyscript module (#1877)

* Expose js_modules via pyscript module

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

pyscript.core/src/stdlib/pyscript/__init__.py

@@ -35,6 +35,7 @@ from pyscript.magic_js import (
     PyWorker,
     current_target,
     document,
+    js_modules,
     sync,
     window,
 )

pyscript.core/src/stdlib/pyscript/magic_js.py

@@ -1,4 +1,5 @@
 import js as globalThis
+from polyscript import js_modules
 from pyscript.util import NotSupported
 
 RUNNING_IN_WORKER = not hasattr(globalThis, "document")