Se creó un boton para ir a la pantalla anterior

import { TouchableOpacity, StyleSheet } from "react-native";

import { Ionicons } from "@expo/vector-icons";

import { router } from "expo-router";

export const FloatingBackButton = () => {

  if (!router.canGoBack()) {

    return null;

  }

  const handleBack = () => {

    router.back();

  };

  return (

    <TouchableOpacity style={styles.back_button} onPress={handleBack}>

      <Ionicons name="arrow-back-outline" size={30} />

    </TouchableOpacity>

  );

};

const styles = StyleSheet.create({

  back_button: {

    position: "absolute",

    top: 15,

    left: 10,

    height: 40,

    width: 40,

    justifyContent: "center",

    alignItems: "center",

    borderRadius: 25,

    backgroundColor: "white",

    borderWidth: 2,

    elevation: 5,

    zIndex: 1,

  },

});