成功メッセージコンポーネント

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            <img src="https://picsum.photos/60/60" alt="Avatar" class="w-14 h-14 rounded-full shadow-md">
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                <h2 class="text-lg font-semibold text-gray-800 dark:text-gray-200">Success!</h2>
                <p class="text-gray-600 dark:text-gray-300">Your operation was completed successfully.</p>
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        <div class="mt-4 space-x-2">
            <a href="#" class="inline-block px-4 py-2 text-sm font-medium text-white bg-blue-600 rounded-md shadow hover:bg-blue-500 transition duration-300">Okay</a>
            <a href="#" class="inline-block px-4 py-2 text-sm font-medium text-gray-700 dark:text-gray-300 bg-gray-200 dark:bg-gray-700 rounded-md shadow hover:bg-gray-300 dark:hover:bg-gray-600 transition duration-300">Dismiss</a>
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