Sync disease by database cross-references

[KrishnaTO]

Complete all subtasks on page ARI - Cross-reference review

• Fill all missing values from database xrefs
• Remove multiple IDs in favour of exact matches to disease
• Validate all diseases with database xrefs
• Create list of missing diseases per database xrefs

To determine match, ensure ARI disease label matches xref disease label or synonym.
Note: Definitions and hierarchies will be reviewed later as developing database anchors is necessary.