Smiles mismatch due to change in chiral tag

[shenoynikhil]

https://github.com/OpenDrugDiscovery/openQDC/blob/0c3f54a352429f3346b5d7a235c403f3ce23e321/openqdc/datasets/potential/geom.py#L49

For some molecules, all conformations do not share the same smiles string since the chiral tag for some chiral centers change across conformations. So the above line, we using the same smiles for all conformations as done in the above code is incorrect.