Fix Chrome column width reset during resize overflow

[mrtintin13130]

Fixes #4840

Summary

This fixes a Chrome-specific issue where manually resizing a column past the table width could reset column widths.

The fix preserves user-resized column widths during layout recalculations and ensures the table body keeps enough minimum width when the total column width exceeds the visible table width.

Changes

• Track columns resized by the user with widthUser
• Prevent layout modes and horizontal renderers from recalculating user-resized widths
• Preserve user-resized widths in fitColumns, fitDataFill, and fitDataStretch
• Set table body minWidth when visible columns overflow horizontally
• Add regression coverage for resize overflow and responsive fitDataStretch

Tests

npx jest test/unit/core/ColumnManager.spec.js test/unit/modules/Layout.spec.js test/unit/modules/ResizeColumns.spec.js
Result: 23 tests passed. ```