Fix curator's name in criTRia JSON file

[hdashnow]

Description

Split the criTRia Curator field into a single primary Curator and a new Contributors field, so each curation credits one lead curator and lists everyone else who contributed to or reviewed it.

Curators were set from the criTRia separate-scoring sheet (Person column). A curator listed only by first name was expanded to their full name, and "Macayla, Laurel" was taken as Macayla. The exceptions:

• ClinGen curations (12 loci) keep the GCEP as curator (e.g. "Epilepsy GCEP") and have no contributors.
• Re-curated loci: the primary curator is the person who substantially re-curated the locus (changed the cited papers or the score), going by commit history on the PR branches:
  • Harriet Dashnow: ALS1_NIPA1, FXS_FMR1, DRPLA_ATN1, HPE5_ZIC2, OPDM5_ABCD3
  • Gabriel Zinser: FRA12A_DIP2B
• Not in the scoring sheet: EPM_CSNK1E and FXTAS,POF1_FMR1 use the first-listed curator (Macayla Weiner).

Harriet Dashnow was also added as a contributor on 12 loci where her review commits changed the evidence or the cited papers but she wasn't listed: SCA12_PPP2R2B, SCA17_TBP, NIID_NOTCH2NLC, SCA10_ATXN10, SCA31_BEAN1, EPM_CSNK1E, EIEE1_ARX, CJD_PRNP, SD5_HOXD13, HFG_HOXA13-III, SCA36_NOP56, SCA6_CACNA1A.

Major Changes

• New data field: Contributors (comma-separated string, or null) in criTRia-curations.schema.json.
• Curator now holds a single name (a person or a ClinGen GCEP).
• Schema guidance: if a curation is completely rewritten by a new curator, the original curator moves to Contributors and the date is updated.

Minor Changes

• criTRia locus pages: the "Curator(s)" box is renamed "Curator", and a "Contributors" box is shown when the field is set.
• Removed a trailing space from one "Amyotrophic Lateral Sclerosis Spectrum Disorders GCEP" entry.
• Typo: Laural -> Laurel

Checklist

• All changes are well summarized
• Check all tests pass
• Check that the website preview looks good
• Update the STRchive version in CITATION.cff, format X.Y.Z. If any major changes, increment Y. If only minor changes, increment Z. If the breaking change (rare), increment X.
• Ask someone to review this PR

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