Column Management Modal Improvements (Grouping, Popovers, and State-based Actions)

While working on a feature requiring complex table customization, I’ve been exploring some potential enhancements to the Column Management modal:

Proposed Enhancements:

• Expandable Column Groups: Add support for grouping related columns within the modal. This is especially useful for tables with many columns, allowing users to expand/collapse sections to find what they need more efficiently.
• Popovers on Group Titles: Allow for informational popovers on group headings to provide additional context or descriptions for specific categories of data.
• Conditional "Restore" State: Disable the Restore default columns action if the user has not made any changes from the default state. This reduces visual noise and clarifies when a customization has actually occurred.

Supporting Documentation:

• Prototype
• Figma Design

Jira Issue: PF-3516

首先查看链接的 Column Management 模态框演示、原型和 Figma 设计，然后将建议的分组、组标题弹出框以及有条件的 Restore 行为与当前组件进行比较。三项增强功能均已实现，且其行为与约定的设计一致，即视为完成；Jira issue PF-3516 可能会提供其他要求。