feat: site institucional completo com design system - Implementa\u00e7\u00e3o do site institucional da Aggios com design system completo incluindo gradientes, tipografia, componentes e se\u00e7\u00f5es de recursos, pre\u00e7os e CTA

front-end-dash.aggios.app/components/ThemeToggle.tsx

@@ -0,0 +1,22 @@
+'use client';
+
+import { useTheme } from '@/contexts/ThemeContext';
+
+export default function ThemeToggle() {
+    const { toggleTheme } = useTheme();
+
+    return (
+        <button
+            onClick={toggleTheme}
+            className="p-2 rounded-lg bg-gradient-to-r from-primary/10 to-secondary/10 hover:from-primary/20 hover:to-secondary/20 transition-all duration-300 border border-primary/20 hover:border-primary/40"
+            aria-label="Alternar tema"
+        >
+            {typeof window !== 'undefined' && document.documentElement.classList.contains('dark') ? (
+                <i className="ri-sun-line text-lg gradient-text font-bold" />
+            ) : (
+                <i className="ri-moon-line text-lg gradient-text font-bold" />
+            )}
+        </button>
+    );
+}
+