Function places::storage::bookmarks::update_pos_for_move

fn update_pos_for_move(
    db: &PlacesDb, 
    pos: BookmarkPosition, 
    bm: &RawBookmark, 
    parent: &RawBookmark
) -> Result<u32>

Updates the position of existing items when an item is being moved in the same folder. Returns what the position should be updated to.