fixed setState error

src/components/Dashboard/Dashboard.tsx

@@ -15,16 +15,16 @@ export default function Dashboard(props: DashboardProps) {
     event: React.MouseEvent<HTMLElement>,
     newFlow: "outflows" | "inflows" | null
   ) => {
-    if (newFlow !== null && newFlow !== state.flow) {
+    if (newFlow === null) return;
+
     setState(prev => {
-        const next = {
+      if (prev.flow === newFlow) return prev;
-          ...prev,
+
-          flow: newFlow,
+      const next = { ...prev, flow: newFlow };
-        };
       props.onFlowChange?.(next);
+
       return next;
     });
-    }
   };
 
   const togglePeriodType = () => {