Fix ShaderGlobalsOverride property handling

[bitsawer]

• Fixes ShaderGlobalsOverride - Params changes lost on reload #82090

A simple typo in property name remapping stopped the overrides from working properly. The properties were actually serialized correctly, but because the remapped names came out wrong they didn't show correct values in the inspector or have any visual effect in rendering after a reload.

[rstecca]

Good job spotting this. I dare say variable names could be better here.

[OhiraKyou]

I dare say variable names could be better here.

Yeah, I was thinking the same thing. Outside of very short and simple math wrappers, where a and b represent operands of the same type whose order doesn't matter (commutative operations), I generally prefer to strictly avoid single-letter variable names—even for loop indices.

[clayjohn]

Looks good.

[akien-mga]

Thanks!

[YuriSizov]

Cherry-picked for 4.1.3.