Nolan/ycfinal

[NolanTrem]

[!IMPORTANT] Enhance type consistency and reorder default tabs in Answer.tsx and SearchResults.tsx.

• Type Adjustments:
  • Source interface in Answer.tsx now extends VectorSearchResult for better type consistency.
• UI Changes:
  • Reorder tabs in SearchResults.tsx to have kgEntities as the default tab instead of vectorSearch.
  • Adjust TabsTrigger order in SearchResults.tsx to reflect new default tab order.
• Misc:
  • Add type annotations to SourceInfo in Answer.tsx for isSearching and sourcesCount.

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