refactor: Table column widths uses async store

[pan-kot]

Description

Refactored table column-widths util with the help of async-store abstraction. Depends on https://github.com/cloudscape-design/components/pull/1246

The refactored variant does not require React context and can be further optimised so that only the affected header columns will be re-rendered and not the entire thead.

How has this been tested?

Existing tests

Performance tests are showing minor improvement:

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[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.01 :tada:

Comparison is base (66fc217) 93.48% compared to head (cc65a75) 93.49%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1359      +/-   ##
==========================================
+ Coverage   93.48%   93.49%   +0.01%     
==========================================
  Files         624      624              
  Lines       16788    16796       +8     
  Branches     5548     5548              
==========================================
+ Hits        15694    15704      +10     
+ Misses       1021     1019       -2     
  Partials       73       73              

Impacted Files	Coverage Δ
src/table/sticky-columns/use-sticky-columns.ts	100.00% <ø> (ø)
src/table/internal.tsx	98.66% <100.00%> (+<0.01%)	:arrow_up:
src/table/thead.tsx	95.45% <100.00%> (+0.10%)	:arrow_up:
src/table/use-column-widths.ts	100.00% <100.00%> (ø)

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