The quick repository switcher orders results alphabetically, so a
repository whose name exactly matches the query can appear below names
that merely contain it.
- Rank exact repository name matches first when no explicit sort order
is requested
- For "owner/repo" queries, rank the exact pair first, then the owner's
other repositories
- Match the owner of "owner/repo" queries case-insensitively, mixed-case
owners were missed
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Co-authored-by: silverwind <me@silverwind.io>