[BUG] Substitute Sprite doesn't get called during the Egg Hatch Phase.

[Smewkie]

Describe the bug
https://discord.com/channels/1125469663833370665/1255175121229058168

As seen in this bug report, a crash that could be avoided by having the substitute sprite called when the asset fails to load during the egg hatch phase.

Expected behavior
Generally when the game fails to load a pokemon sprite during the battle phase due to a cache issue, it will instead display the substitute sprite to avoid the game crashing(though sometimes the game still crashes anyway), this behavior should generally extend to other places where the pokemon's sprite would be displayed, such as:

The pokemon summary screen(accessed during battle so it may display here, unsure)
The Egg hatch screen
The Starter Select screen
maybe even the evolution screen? that's also generally during battle so is probably not an issue.

Screenshots / Videos
Included in the link above, actually a very clear layout of the issue in that thread.