Glassmorphismサイドバーナビゲーション

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        <div class="flex items-center justify-center h-16 border-b border-gray-300 dark:border-gray-700">
            <span class="text-2xl font-semibold text-gray-800 dark:text-white">Dashboard</span>
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        <nav class="flex-1 px-2 py-4 space-y-2">
            <a
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                Reports
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                alt="Avatar"
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            <span class="ml-2 text-sm font-semibold text-gray-800 dark:text-white">John Doe</span>
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