refactor: enable scroll in plotly iframe (#443)

Author: hyrious

executor/python_executor/matplot/oomol_matplot_helper.py

@@ -64,7 +64,7 @@ def render(self, fig_dict):
                     color_scheme = os.getenv("OOMOL_COLOR_SCHEME", "dark")
                     # The generated html has default body margin 8px in chrome, remove it.
                     html = re.sub(r'<html[^>]*?>', r'\g<0><style>html { color-scheme: ' + color_scheme + '; height: 100%; align-content: center } ' +
-                        'body { overflow: hidden; margin: 0 }</style>', html, flags=re.I)
+                        'body { margin: 0 }</style>', html, flags=re.I)
                     context.preview({ "type": "html", "data": html })
                 else:
                     logger.warning('plotly: no sys.modules["oomol"]')
@@ -77,4 +77,4 @@ def render(self, fig_dict):
 
 def import_helper(logger: Logger):
     setup_matplot(logger)
-    setup_plotly(logger)
+    setup_plotly(logger)