Adjust top margin for app

Adjusted the top margin of the entire app (home, expenses, analytics, settings, etc.) to add 5px of spacing.

src/App.tsx

@@ -118,6 +118,7 @@ function App() {
         <BudgetProvider>
           <Router>
             <div className="flex flex-col min-h-screen">
+              <div className="pt-[5px]"></div> {/* 추가된 상단 여백 */}
               <NavBar />
               <div className="flex-grow">
                 <Routes>