fix(common): rename changeColumnsArrangement to applyColumnLayout

[ghiscoding]

Summary

Fix the column layout API naming by introducing applyColumnLayout() as the preferred method name.

Why

changeColumnsArrangement(), in GridStateService, is awkward and does not clearly describe that the method applies column order, visibility, and width state. The new name applyColumnLayout() better represent the usage.

Changes

• Rename the preferred API to applyColumnLayout() in GridStateService.
• Retain changeColumnsArrangement() as a deprecated compatibility alias.
• Plan to remove the deprecated alias in v11.
• Update Angular, Aurelia, React, Vanilla Bundle, and Vanilla demo call sites.
• Update and extend focused unit tests.

Validation

• Grid state tests: 72 passed.
• Angular component tests: 118 passed.
• Vanilla Bundle tests: 116 passed.
• Prettier and git diff --check passed.
• React/Aurelia standalone typechecks require regenerated packages/common/dist declarations.

Comments

This is an API naming fix; existing consumers using changeColumnsArrangement() remain supported during the deprecation period.

AI / LLM assistance

• AI / LLM assistance used:
  • No
  • Yes
• If Yes:
  • which tool/model: Codex GPT-5.6 Luna
  • how was it used: Reviewed the API, implemented the compatible rename, updated call sites and tests, and validated the changes.

Checklist

• The changes are limited to only one scope.
• Tests were added or updated where appropriate.
• Documentation was updated where appropriate.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.0%. Comparing base (2414a21) to head (d042f84).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2779   +/-   ##
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  Coverage   100.0%   100.0%           
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  Files         199      199           
  Lines       25776    25776           
  Branches     9132     9132           
=======================================
  Hits        25776    25776           

Flag	Coverage Δ
angular	100.0% <100.0%> (ø)
universal	100.0% <100.0%> (ø)

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commit: d042f84