Migrate remaining List components to TypeScript

[fzaninotto]

Refs #4505

I took the liberty to reorganize components in subdirectories, too.

packages/ra-ui-materialui/src/list
├── datagrid
│   ├── Datagrid.tsx
│   ├── DatagridBody.tsx
│   ├── DatagridCell.spec.tsx
│   ├── DatagridCell.tsx
│   ├── DatagridHeaderCell.spec.tsx
│   ├── DatagridHeaderCell.tsx
│   ├── DatagridLoading.tsx
│   ├── DatagridRow.spec.tsx
│   ├── DatagridRow.tsx
│   ├── ExpandRowButton.tsx
│   ├── index.ts
│   └── useDatagridStyles.tsx
├── filter
│   ├── Filter.spec.tsx
│   ├── Filter.tsx
│   ├── FilterButton.spec.tsx
│   ├── FilterButton.tsx
│   ├── FilterButtonMenuItem.tsx
│   ├── FilterForm.spec.tsx
│   ├── FilterForm.tsx
│   ├── FilterFormInput.tsx
│   ├── FilterList.tsx
│   ├── FilterListItem.tsx
│   ├── FilterLiveSearch.tsx
│   └── index.ts
├── pagination
│   ├── Pagination.spec.tsx
│   ├── Pagination.tsx
│   ├── PaginationActions.spec.tsx
│   ├── PaginationActions.tsx
│   ├── PaginationLimit.tsx
│   └── index.ts
├── BulkActionsToolbar.tsx
├── BulkDeleteAction.tsx
├── Empty.tsx
├── List.spec.tsx
├── List.tsx
├── ListActions.tsx
├── ListGuesser.tsx
├── ListToolbar.tsx
├── ListView.tsx
├── Placeholder.tsx
├── SimpleList.tsx
├── SimpleListLoading.tsx
├── SingleFieldList.spec.tsx
├── SingleFieldList.tsx
├── index.ts
└── listFieldTypes.tsx

[djhi]

👍

[djhi]

Why is this file still in JS ?

[fzaninotto]

it's in detail - this part isn't migrated to Typecript yet (it's the last part to migrate)