always use fits KEYWORD name for element name?

[kosack]

fits_schema supports having a separate element name from the header keyword name. Should we use that to define nicer element names that can be longer than 8 characters? e.g. should we write:

Re-use the same element and keyword name:

class BibliographicHeader(Header):
    """The creator of this data product."""

    ORIGIN = HeaderCard(
        description="Organization or institution responsible for this file.",
        type_=str,
        reference=Ref.fits_v4,
        examples=["CTAO ERIC"],
    )
...

or, use a nice element name, and specify keyword name?

class BibliographicHeader(Header):
    """The creator of this data product."""

    organization = HeaderCard(
        keyword="ORIGIN",
        description="Organization or institution responsible for this file.",
        type_=str,
        reference=Ref.fits_v4,
        examples=["CTAO ERIC"],
    )