Useless hiding of the afrim input loading state

### Description

The download status required by the `afrim-input` is not only to download the dataset, but also to load and config the `afrim`.
When the `afrim` will finish initiating, it will hide it automatically, then the developer don't need to take care about it.

https://github.com/fodydev/lewa-type/blob/5d791f420054fbebdd06a4ef03600563dc5b4f75/app/templates/competition_play.html#L299-L312

### Expected soution

Leave the `afrim` to handle the display state of this download status element.