chore: remove redundant features

- Remove getPackageJson and getGitInfo from vite config
- Remove Updates tab and all related logic as there was no true update logic in the codebase

app/lib/hooks/index.ts

@@ -4,7 +4,6 @@ export * from './useShortcuts';
 export * from './StickToBottom';
 export * from './useEditChatDescription';
 export { default } from './useViewport';
-export { useUpdateCheck } from './useUpdateCheck';
 export { useFeatures } from './useFeatures';
 export { useNotifications } from './useNotifications';
 export { useConnectionStatus } from './useConnectionStatus';