Consistency between Numpy and JAX versions

I am creating this issue to keep track of the things that are done differently in two versions. This does not mean that we need to change these, but we should at least be aware and where necessary make it very clear in the documentation that these exists.

1. Antenna properties: the antenna property attributes like antenna names are named differently (antenna_information vs ant_names).
2. Template storage: the Numpy version uses npz archives to store templates, the JAX version does it with HDF5 files

Then there is also the internal consistency. The Numpy version still uses the abbreviation of ant in many of the function names, like get_ant_names(). Should this be changed, in line with the attributes?