install tox dependencies for tests env

tox.ini

@@ -75,6 +75,8 @@ commands = coverage erase
 commands =
     pipenv install --dev
     pipenv run python tools/frontend/bundle_build.py
+    pipenv run ipython kernel install --name "python3" --user
+    pipenv run playwright install chromium --with-deps
     pipenv run pip freeze
     pipenv run pytest -s tests