GIFs, APNGs not animated in new chat

[BLKZOR]

The following GIF and APNG images were animated in the previous chat (FloofChat.js), but are no longer animated in the new chat (armord_chat.js).

https://upload.wikimedia.org/wikipedia/commons/1/14/Animated_PNG_example_bouncing_beach_ball.png
https://upload.wikimedia.org/wikipedia/commons/3/31/Eokxd.gif

[Armored-Dragon]

The QT version we have does not seem to support animated .png. FloofChat was able to support APNGs because that chat was using the browser engine to render the display. Since DomainChat is using pure QT, there might be some weird quirks in the transition.
I have since added support for animated files in this commit to this pull request. This support unfortunately does not seem to function with animated PNGs. If our implementation of QT changes, namely we install a plugin to support .apng or QT itself gets support, the implementation inside of DomainChat should function as soon as it is added.