As it turns out, you can resize your features right off the chromosome

The function `grelu.sequence.utils.resize` when applied to intervals

e.g.

```
adata.var = grelu.sequence.utils.resize(
    adata.var,
    seq_len
)
```
Can apparently scale your features beyond the bounds of the chromosome -- something that you won't find out until you try to build a dataset. 
The resizing should probably have a `genome` argument to avoid this. 
