move pydom and elements from pyweb to pyscript.web (#2092)

* change pydom example to use new pyscript.web namespace

* change tests to use new pyscript.web namespace

* create new pyscript.web package and move pydom to pyscript.web.dom

* add __init__ to pyscript.web and expose the dom instance instead of the pyscript.web.dom module

* move elements from pyweb.ui to pyscript.web and temp fix pydom import

* moved of elements file completed

* moved media from pyweb to pyscript.web

* RIP pyweb

* move JSProperty from pyscript.web.dom to pyscript.web.elements

* move element classes from pyscript.web.dom to pyscript.web.elements

* first round of fixes while running tests

* fix test typo

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

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

* restore right type type returned for Element.parent. ALL TESTS PASS LOCALLY NOW

* lint

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

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

* clean up dom.py from dead commented code and osbolete comments

* bugfix: dom shouldn't return None when it can't find any element for a specific selector so it now returns an empty collection

* additional cleanup in tests

* lint

---------

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

pyscript.core/tests/integration/test_pyweb.py

@@ -101,10 +101,11 @@ class TestElements(PyScriptTest):
         code_ = f"""
                 from pyscript import when
             <script type="{interpreter}">
-                from pyweb import pydom
-                from pyweb.ui.elements import {el_type}
+                from pyscript.web import dom
+                from pyscript.web.elements import {el_type}
+
                 el = {el_type}({attributes})
-                pydom.body.append(el)
+                dom.body.append(el)
             </script>
             """
         self.pyscript_run(code_)