Show when a match was canceled

The `Replay` entity has `Replay::getCanceled()` which is set by the import process but we're not doing anything with it. Indicate on the front-end that a match was canceled and was not completed.

As an example, the following match was canceled after 97 seconds but it still shows up as 20 minutes in duration (because that was the original length). This needs to be indicated better.

http://postgame.allejo.org/replays/9819/20200201-2020-fun.rec