Port ListDetailsView from 7.x

**Source**: Microsoft.Toolkit.Uwp.UI.Controls (7.x)
**Destination**: TBD (not yet determined)

## Description

Presents items in a list/details pattern. Renamed to ListDetailsView in 7x.

## Prerequisites

None identified.

## Porting Basics

- [ ] Namespace updated to `CommunityToolkit.WinUI.*`
- [ ] Code for UWP, WinUI3 and Uno Platform consolidated
- [ ] Desired MultiTargets configured
- [ ] Sample code migrated
- [ ] Concept docs migrated
- [ ] Tests migrated and passing

## Quality Evaluation

See [Porting Criteria](https://github.com/CommunityToolkit/Windows/wiki/Component-Quality-Evaluation) for detailed evaluation guidance.

- [ ] UX: Accessibility reviewed
- [ ] UX: Visual design reviewed
- [ ] UX: Interaction patterns appropriate
- [ ] DX: API surface reviewed
- [ ] DX: API flexibility appropriate
- [ ] DX: Documentation updated
- [ ] MX: Breaking changes documented
- [ ] MX: Domain isolation appropriate
- [ ] MX: Test coverage adequate

## Tracking Gaps

*No gaps identified — porting work not yet started.*

## Closing

- [ ] All Porting Basics complete
- [ ] Quality Evaluation reviewed
- [ ] Gaps filed as sub-issues

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## 7x Documentation Inventory

**Docs ported to 8x**: n/a

**Docs not in 8x**: All sections

## 7x Source Inventory

**Source already ported to 8x**: n/a

**Source not ported to 8x**: All

## Notes

- Not currently planned for porting. Open to community interest.
- **Archive redirect**: https://learn.microsoft.com/en-us/dotnet/communitytoolkit/windows/archive/listdetailsview

Start by reviewing the archived ListDetailsView documentation and the linked Porting Criteria, then determine the destination because the issue leaves it TBD. The work is complete when the listed porting basics, quality evaluation, documentation, tests, and closing checks are addressed, with any gaps filed as sub-issues.

Scritto dal modello di indicizzazione a partire dal testo della issue.