refactored widget charts

app/Widgets/CashFlow.php

@@ -92,7 +92,7 @@ class CashFlow extends Widget
                 ])
             ->fill(false);
 
-        return $this->view('widgets.cash_flow', [
+        return $this->view('widgets.line_chart', [
             'chart' => $chart,
         ]);
     }

app/Widgets/ExpensesByCategory.php

@@ -23,7 +23,7 @@ class ExpensesByCategory extends Widget
 
         $chart = $this->getDonutChart(trans_choice('general.expenses', 2), 0, 160, 6);
 
-        return $this->view('widgets.expenses_by_category', [
+        return $this->view('widgets.donut_chart', [
             'chart' => $chart,
         ]);
     }

app/Widgets/IncomeByCategory.php

@@ -23,7 +23,7 @@ class IncomeByCategory extends Widget
 
         $chart = $this->getDonutChart(trans_choice('general.incomes', 1), 0, 160, 6);
 
-        return $this->view('widgets.income_by_category', [
+        return $this->view('widgets.donut_chart', [
             'chart' => $chart,
         ]);
     }