Detailed List Sorting and assigning new accessors

### What is the problem or limitation you are having?

I have a detailed list with many attributes. In order to sort by those attributes I need to sort the list of rows itself, I then need to then notify("clear") then notify("insert", row) for each row in the list. This is performant enough on Linux but is extremely slow on Android; I presume it's making a new list each time, or something like that. This issue alone is making me consider writing my project for each platform individually, so I feel as a whole this is a pretty important issue.

### Describe the solution you'd like

I would like to see a performant solution to both of these issues. A sort function would be great but I would be more interested in an added notify() option of the likes of "all_changed", where the platform rerenders the entire list. I understand you could just re-declare a new detailed list but if I remember correctly, that's even slower than re-rendering each row manually.

### Describe alternatives you've considered

It's possible that this specific is too specific and too complex to implement.

### Additional context

Start by tracing the DetailedList row-update and notify() entry points, focusing on the sort workflow and the proposed "all_changed" notification. Compare the Linux and Android behavior, then define completion as a performant way to reorder rows or rerender the entire list without repeated per-row notifications.

Written by the indexing model from the issue text.