style(ui): update color palette to use darker sh

src/features/admin/widgets/users.client.js

@@ -13,8 +13,8 @@ function UsersWidget({ data, loading }) {
       change={!loading && newThisMonth > 0 ? `+${newThisMonth} ce mois` : undefined}
       changeType="increase"
       icon={UserMultiple02Icon}
-      color="text-purple-400"
-      bgColor="bg-purple-500/10"
+      color="text-blue-700"
+      bgColor="bg-blue-700/10"
       loading={loading}
     />
   );

src/shared/components/StatCard.js

@@ -14,7 +14,7 @@ const StatCard = ({
     className = '',
     ...props
 }) => {
-    const deltaColor = changeType === 'increase' ? 'text-green-400' : 'text-red-400';
+    const deltaColor = changeType === 'increase' ? 'text-green-700' : 'text-red-700';
     const arrow = changeType === 'increase' ? '↑' : '↓';
 
     return (