glb chunk lenght unaligned (4-byte boundaries)

[madjin]

compared exports + VRM validator from main and refactor branch, and there were not many differences between them (exported with mtoon atlas for both) except for this error appearing in refactor branch:

Anata 214:

I noticed this error in Anata 32 as well

12a13,18 "code": "GLB_CHUNK_LENGTH_UNALIGNED", "message": "Length of 0x4e4f534a chunk is not aligned to 4-byte boundaries.", "severity": 0, "offset": 12 },

exported VRMs: compare.zip

Originally posted by @madjin in https://github.com/M3-org/CharacterStudio/issues/80#issuecomment-1870779086