TEMP: Add _repr_html_ for Colab widget display fix

Author: shuoweil

bigframes/dataframe.py

@@ -942,6 +942,13 @@ def _repr_mimebundle_(self, include=None, exclude=None):
 
         return {"text/html": html_string, "text/plain": text_representation}
 
+    def _repr_html_(self):
+        """
+        Renders the DataFrame as HTML.
+        This method is used by IPython to display the DataFrame.
+        """
+        return self._repr_mimebundle_()["text/html"]
+
     def _create_html_representation(
         self,
         pandas_df: pandas.DataFrame,