Optional dependencies missing

[StijnKas]

pdstools version checks

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Issue description

When running pdstools on a clean environment, great-tables & pandas seem to be required - even though they are optional. This is triggered from Reports and from the new IH class (pandas is in plotly.express in IH I think; let's inline dependency it just like ADM.plots)

Same for pyarrow; we still use the use_pyarrow_extension_array when we convert to pandas for some plotly charts - we don't need to do this now that plotly uses Narwhals

Reproducible example

from pdstools import datasets
datasets.cdh_sample()

Expected behavior

These optional dependencies should be optional - and not installed directly

Installed versions

Replace this line with the output of pdstools.show_versions(), leave the backticks in place