feat: tabs调整

app/(tabs)/mine.tsx

@@ -0,0 +1,28 @@
+import { ThemedView } from "@/components/themed-view";
+import { Text, TouchableOpacity } from "react-native";
+import { useRouter } from "expo-router";
+
+export default function MainScreen() {
+  const router = useRouter();
+
+  const handleWithdraw = () => {
+    router.push("/withdraw");
+  };
+
+  return (
+   <ThemedView style={{ flex: 1, justifyContent: "center", alignItems: "center" }}>
+      <TouchableOpacity
+        onPress={handleWithdraw}
+        style={{
+          backgroundColor: "#007AFF",
+          paddingVertical: 10,
+          paddingHorizontal: 20,
+          borderRadius: 8,
+        }}
+      >
+        <Text style={{ color: "#fff", fontSize: 16 }}>提现</Text>
+      </TouchableOpacity>
+    </ThemedView>
+  )
+}
+