TankWidgets backgroundTexture method does not set background texture

[QuImUfu]

I wanted to set a custom background texture for a TankWidget and was quite flabbergasted why it didn't work, then I realized the overwritten backgroundTexture method ignores the passed id.

emi/xplat/src/main/java/dev/emi/emi/api/widget/TankWidget.java

Lines 29 to 30 in dfc0099

	public SlotWidget backgroundTexture(Identifier id, int u, int v) {
	return super.backgroundTexture(textureId, u, v);

If that is intentional, it should be documented why, if it isn't, that's a bug :)