Currently, only `RowSpan` `ColSpan` and `HeaderText` parameters cause a `TileLayout` to rerender when changed.  I use `Class` changes for a lot of styling (in particular it's useful for hiding/showing a `TileLayoutItem` without losing its position in the layout) and have to manually detect and call `StateHasChanged()` when the `Class` parameter changes on `TileLayoutItem`.

Please allow dynamic change of the TileLayoutItem Class property.