feat(dashboard): ajustar layout e estilos

- Adiciona o PrivacyProvider ao layout do dashboard
- Atualiza variáveis de cor no CSS para o tema
- Modifica largura máxima de elementos no componente de tabela
- Remove fonte antropic-sans e substitui por Barlow
- Ajusta classes de estilo em componentes de cartão e sidebar

components/ui/card.tsx

@@ -7,7 +7,7 @@ function Card({ className, ...props }: React.ComponentProps<"div">) {
     <div
       data-slot="card"
       className={cn(
-        "bg-card text-card-foreground flex flex-col gap-6 border drop-shadow-xs py-6 rounded-md hover:border-primary/50 transition-colors",
+        "bg-card text-card-foreground flex flex-col gap-6 border-transparent border drop-shadow-xs py-6 rounded-md hover:border-primary/50 transition-colors",
         className
       )}
       {...props}

components/ui/sidebar.tsx

@@ -235,7 +235,7 @@ function Sidebar({
           // Adjust the padding for floating and inset variants.
           variant === "floating" || variant === "inset"
             ? "p-2 group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4))+2px)]"
-            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon) group-data-[side=left]:border-r group-data-[side=right]:border-l",
+            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon) group-data-[side=right]:border-l",
           className
         )}
         {...props}