perf(profile): improve rendering performance and selector efficiency

Optimize profile-related screens and components by implementing memoization and granular Zustand selectors to reduce unnecessary re-renders.

- **Performance Optimization**:
  - Wrap `TabBar` in `React.memo` to prevent re-renders when parent components update.
  - Refactor `UserProfileScreen` to use a memoized `ProfileListHeader` component, decoupling the user header from tab state changes.
- **State Management**:
  - Replace object destructuring from `useAuthStore` with granular selectors (e.g., `useAuthStore((s) => s.logout)`) in `AccountDeletionScreen`, `EditProfileScreen`, `FollowListScreen`, and `SettingsScreen` to prevent re-renders on unrelated store changes.
- **Code Cleanup**:
  - Remove redundant case logic in `useUserProfile` hook.

src/screens/profile/AccountDeletionScreen.tsx

@@ -180,7 +180,7 @@ export const AccountDeletionScreen: React.FC = () => {
   const router = useRouter();
   const { isMobile } = useResponsive();
   const insets = useSafeAreaInsets();
-  const { logout } = useAuthStore();
+  const logout = useAuthStore((s) => s.logout);
   const [status, setStatus] = useState<DeletionStatusDTO | null>(null);
   const [loading, setLoading] = useState(true);
   const [submitting, setSubmitting] = useState(false);