Select data for graph taskpane gets cutoff and is unscrollable

[naterush]

Describe the bug

In safari, I cannot scroll in the select data taskpane when the graph is open.

import pandas as pd
df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6], 'C': [7, 8, 9]})
import mitosheet
mitosheet.sheet(df)

I cannot scroll down to Facet Row -- and the more data you select, the less scrolling you can see.

[naterush]

This seems like a reasonable thing to add a frontend test for -- that you can scroll facet row into view or something similar :)