Editing json metadata on dashboard is now more difficult

Screenshot

Description

The modal is not resizable and the area for json metadata so small it will be very difficult for users to make edits.

Design input

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The JSON metadata editor in the PropertiesModal currently has a fixed height of 200px, which does make editing complex JSON structures difficult.

The good news is Superset's base Modal component already supports resizability via the re-resizable library, but the PropertiesModal doesn't enable it. PR #37555 successfully made the datasource modal resizable and draggable using this same infrastructure, so fixing this would involve enabling the resizable prop on the PropertiesModal following that pattern.

A similar concern was raised for the dataset edit modal in #38215.

To reply, just mention @dosu.

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