fix: remove save button

pages/settings/FiatCurrency.tsx

@@ -1,13 +1,12 @@
-import { router } from "expo-router";
 import React from "react";
 import { View, FlatList, TouchableOpacity } from "react-native";
-import Toast from "react-native-toast-message";
-import { Button } from "~/components/ui/button";
 import { Text } from "~/components/ui/text";
 import { useAppStore } from "~/lib/state/appStore";
 import Screen from "~/components/Screen";
 import { cn } from "~/lib/utils";
 import CurrencyList from 'currency-list';
+import { router } from "expo-router";
+import Toast from "react-native-toast-message";
 
 const currencies: [string, string][] = Object.entries(CurrencyList.getAll("en_US")).map(([code, details]) => [code, details.name]);
 
@@ -16,10 +15,20 @@ export function FiatCurrency() {
     useAppStore.getState().fiatCurrency,
   );
 
+  function select(iso: string) {
+    setFiatCurrency(iso);
+    useAppStore.getState().setFiatCurrency(fiatCurrency);
+    Toast.show({
+      type: "success",
+      text1: "Fiat currency updated",
+    });
+    router.back();
+  }
+
   const renderCurrencyItem = ({ item }: { item: [string, string] }) => (
     <TouchableOpacity
       className={cn("p-4 flex flex-row gap-2 border-b border-input", item[0] === fiatCurrency && "bg-muted")}
-      onPress={() => setFiatCurrency(item[0])}
+      onPress={() => select(item[0])}
     >
       <Text className={cn("text-lg", item[0] === fiatCurrency && "font-bold2")}>
         {item[1]}
@@ -39,19 +48,6 @@ export function FiatCurrency() {
         keyExtractor={(item) => item[0]}
         className="flex-1 mb-4"
       />
-      <Button
-        size="lg"
-        onPress={() => {
-          useAppStore.getState().setFiatCurrency(fiatCurrency);
-          Toast.show({
-            type: "success",
-            text1: "Fiat currency updated",
-          });
-          router.back();
-        }}
-      >
-        <Text>Save</Text>
-      </Button>
     </View>
   );
 }