* `element_pair_rdfs` plots radial distribution functions (RDFs) for element pairs in a structure (#203)

* improve set_plotly_template auto-complete with Literal type

* add element_pair_rdfs(structure) -> go.Figure in new pymatviz/rdf.py module

* add tests/test_rdf.py

* remove ase.Atoms conversion to avoid new pkg dep

* show element_pair_rdfs examples in readme

* should have used save_and_compress_svg

* fix rds svg path

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Co-authored-by: Janosh Riebesell <janosh.riebesell@gmail.com>

include = ["pymatviz*"]