アクティビティフィードコンポーネント

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    <h2 class="text-2xl font-bold mb-4">Activity Feed</h2>
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                <p class="font-semibold">John Doe</p>
                <p class="text-gray-400">Commented on your post</p>
                <span class="text-gray-500 text-sm">2 hours ago</span>
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                <p class="font-semibold">Jane Smith</p>
                <p class="text-gray-400">Liked your photo</p>
                <span class="text-gray-500 text-sm">4 hours ago</span>
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                <p class="font-semibold">Sam Wilson</p>
                <p class="text-gray-400">Started following you</p>
                <span class="text-gray-500 text-sm">6 hours ago</span>
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                <p class="font-semibold">Lisa Ray</p>
                <p class="text-gray-400">Shared your article</p>
                <span class="text-gray-500 text-sm">1 day ago</span>
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                <p class="font-semibold">Michael Brown</p>
                <p class="text-gray-400">Added a photo</p>
                <span class="text-gray-500 text-sm">2 days ago</span>
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