Reduce spacing in Header

Reduced the spacing between "젤리의 적자 탈출" and the graph in the Header component.

src/components/home/HomeContent.tsx

@@ -57,7 +57,7 @@ const HomeContent: React.FC<HomeContentProps> = ({
       )}
 
       {/* 목표 진행 상황 */}
-      <h2 className="text-lg font-semibold mb-3 mt-6">예산과 지출</h2>
+      <h2 className="text-lg font-semibold mb-2 mt-4">예산과 지출</h2>
       <BudgetProgressCard 
         budgetData={budgetData}
         selectedTab={selectedTab}