Refactor SecurityPrivacySettings component

Refactor the SecurityPrivacySettings component into smaller, more manageable sub-components for improved readability and maintainability. The functionality of the page remains unchanged.

src/components/security/SaveSettingsButton.tsx

@@ -0,0 +1,41 @@
+
+import React from 'react';
+import { Button } from '@/components/ui/button';
+import { useNavigate } from 'react-router-dom';
+import { useToast } from '@/hooks/use-toast';
+
+type SaveSettingsButtonProps = {
+  onSave?: () => void;
+};
+
+const SaveSettingsButton = ({ onSave }: SaveSettingsButtonProps) => {
+  const navigate = useNavigate();
+  const { toast } = useToast();
+
+  const handleSave = () => {
+    // 사용자 정의 저장 함수가 있으면 실행
+    if (onSave) {
+      onSave();
+    }
+    
+    // 기본 저장 동작
+    toast({
+      title: "보안 설정이 저장되었습니다.",
+      description: "변경사항이 성공적으로 적용되었습니다.",
+    });
+    navigate('/settings');
+  };
+
+  return (
+    <div className="px-6">
+      <Button 
+        onClick={handleSave}
+        className="w-full bg-neuro-income text-white hover:bg-neuro-income/90"
+      >
+        저장하기
+      </Button>
+    </div>
+  );
+};
+
+export default SaveSettingsButton;