fix: Prevent Table from crashing when removing a column in edit state

[abdhalees]

Description

If a column gets removed from a table while in editing state, the table crashes.
even though we recommend to disable preferences while a table is editing, this commit should prevent the table from crashing.

Related links, issue #, if available: AWSUI-60271

How has this been tested?

Review checklist

The following items are to be evaluated by the author(s) and the reviewer(s).

Correctness

• Changes include appropriate documentation updates.
• Changes are backward-compatible if not indicated, see CONTRIBUTING.md.
• Changes do not include unsupported browser features, see CONTRIBUTING.md.
• Changes were manually tested for accessibility, see accessibility guidelines.

Security

• If the code handles URLs: all URLs are validated through the checkSafeUrl function.

Testing

• Changes are covered with new/existing unit tests?
• Changes are covered with new/existing integration tests?

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.45%. Comparing base (34cd820) to head (143f149).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3222   +/-   ##
=======================================
  Coverage   96.45%   96.45%           
=======================================
  Files         791      791           
  Lines       22314    22314           
  Branches     7662     7601   -61     
=======================================
  Hits        21523    21523           
  Misses        739      739           
  Partials       52       52           

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[dpitcock]

Looks good