add connect button for ws html5 (#621)

zhaomingwork

2023-06-12 d7e3ae17c3ac056752ecf5c41ff9a96645fcad49

 setup.py

@@ -81,7 +81,7 @@
        # "gtn==0.0.0",
    ],
    "setup": [
        "numpy<=1.21.3",
        "numpy",
        "pytest-runner",
    ],
    "test": [