Reformat Schema and STRchive loci (#262)

## Description

This PR will serve as a base for the changes coming in both #238 and
#260.

Fixes: #240

## Major Changes

- Reorder fields in schema and STRchive loci json to be more similar to
locus pages
- Automate sorting of STRchive loci json fields so that they match the
schema order
- Remove deprecated fields "type", "flank_motif" and "source" and where
necessary integrate their content into other fields
- Add new locus_structure format and check it against the reference
genome for some unusual loci like FAME and XYLT1

## Minor Changes

- Fix citation in one of the ataxias that was pointing to the wrong
disease

## Checklist

- [x] All changes are well summarized
- [x] Check all tests pass
- [x] Check that the website preview looks good
- [x] 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.
- [x] Ask someone to review this PR

Author: hdashnow

CITATION.cff

@@ -1,6 +1,6 @@
 title: STRchive
-version: 2.9.1
-date-released: "2025-08-18"
+version: 2.10.0
+date-released: "2025-09-05"
 url: https://github.com/dashnowlab/STRchive
 authors:
   - family-names: Dashnow