[Bug] Epic Drifblim using Drifloon sprite

[chaosgrimmon]

What are the changes?

Epic shiny Drifblim gets a perfectly functional animated backsprite, and stops using incorrectly-sized slices of epic Drifloon.

Why am I doing these changes?

There have been so many reports of this I swear.

What did change?

2, means to "use the 426_3.png provided", which is the stray Drifloon sprite.
1, instead, tells it to literally just recolor the default Drifblim sprite, the way it does perfectly well for its rare variant.

Screenshots/Videos

Before:

After:

How to test the changes?

overrides.ts can set a SHINY=true, VARIANT=2 Species.DRIFBLIM as your first starter.

Checklist

• There is no overlap with another PR?
• The PR is self-contained and cannot be split into smaller PRs?
• Have I provided a clear explanation of the changes?
• Have I tested the changes (manually)?
  • Are all unit tests still passing? (npm run test)
• Are the changes visual?
  • Have I provided screenshots/videos of the changes?

[chaosgrimmon]

Frankly I have no idea why pokemon/variant/back/426_3.png exists. Obviously the numbering is off by one, but even then, the colours already match, so it doesn't seem to add any detail that isn't already in Drifloon's epic variant.

It's not an inexplicably load-bearing TF2!coconut.jpg or anything either, because I deleted it without so much as a console warning.
The #artist backlog might have more details, but I don't have access to those, so 🤷

[Tempo-anon]

426_3 was added by Sam