feat: new expense navigation

app/(tabs)/home/_layout.tsx

@@ -0,0 +1,16 @@
+import { Stack } from "expo-router";
+
+import { View, Text } from 'react-native'
+import React from 'react'
+
+export default function _Layout() {
+  return (
+    <Stack>
+      <Stack.Screen name="index" options={{
+        title: "test",
+        headerShown: false,
+      }}/>
+      <Stack.Screen name="addItem"/>
+    </Stack>
+  )
+}