Function show_file_by_file_diff

pub async fn show_file_by_file_diff(
    ui: &Ui,
    formatter: &mut dyn Formatter,
    store: &Store,
    tree_diff: BoxStream<'_, CopiesTreeDiffEntry>,
    path_converter: &RepoPathUiConverter,
    tool: &ExternalMergeTool,
    conflict_marker_style: ConflictMarkerStyle,
) -> Result<(), DiffRenderError>