Misleading error message when a restart is required before a table can be viewed

[seeM]

1. Create a new environment, or delete pandas/polars in the current environment and restart the session.
2. Create and view a dataframe:

import pandas as pd
df = pd.DataFrame({'a': [0]})

%view df

You'll see the error in the console:

UsageError: cannot view object of type 'pandas.core.frame.DataFrame'

We should show a more informative error message in the console.