Need a way to turn off text selectability, e.g., for elements of a core.Table

[rcoreilly]

Describe the bug

When you do multi-select using command / ctrl or shift lines in a core.Table (or tensorcore.Table), you end up selecting bits of text in read-only TextField elements, which looks pretty bad.

We don't currently have a way to prevent this from happening. Abilities of these elements do NOT currently include Selectable, which is a bit muddled of an ability AFAIK..

How to reproduce

try it! :)

Example code

Relevant output

Platform

macOS