iOS WASM out of memory error - asset loading

## Bevy version

0.13.1

```
AdapterInfo { name: "Apple GPU", vendor: 4203, device: 0, device_type: Other, driver: "", driver_info: "", backend: Gl }
```

iOS 17.2

Loading 10 larger images quickly with `asset_server.load(format!("tester{}.webp", x));` on iOS web causes:

https://github.com/v-kat/bevy_bad_render_bug_repo has a reproduction

Also see https://github.com/bevyengine/bevy/discussions/12678#discussioncomment-9076015

Start with the reproduction repository and run the iOS 17.2 web case that loads 10 larger WebP images through asset_server.load(format!("tester{}.webp", x)). Read the linked discussion for related findings; done means identifying the asset-loading cause of the out-of-memory error and verifying the reproduction no longer fails.

Written by the indexing model from the issue text.