Fix toast and data display issues

- Fixes an issue where toast notifications would not automatically dismiss.
- Addresses a problem where expense data was not displaying correctly on the transaction and analytics screens.

src/components/analytics/MonthlyComparisonChart.tsx

@@ -41,7 +41,7 @@ const MonthlyComparisonChart: React.FC<MonthlyComparisonChartProps> = ({
 
   return (
     <div className="neuro-card h-72 w-full">
-      {!isEmpty && monthlyData.length > 0 ? (
+      {!isEmpty && monthlyData.length > 0 && monthlyData.some(item => item.budget > 0 || item.expense > 0) ? (
         <ResponsiveContainer width="100%" height="100%">
           <BarChart data={monthlyData} margin={{
             top: 20,