Convert SettingsScreen to SwiftUI components from @expo/ui/swift-ui

- Add new ListItem, ListItemSeparator, ListMenu components
- Update SettingsScreen to use @expo/ui/swift-ui components (Host, Form, Section, Toggle, Button)
- Maintain same functionality with SwiftUI-based UI

Author: cheeaun

components/ListItem.jsx

@@ -0,0 +1,38 @@
+import { useState } from 'react';
+import { Pressable } from 'react-native';
+
+import useTheme from '../hooks/useTheme';
+
+export default function ListItem({ style = {}, ...props }) {
+  const { colors } = useTheme();
+  const [pressed, setPressed] = useState(false);
+  const styles = {
+    paddingHorizontal: 15,
+    paddingVertical: 13,
+    backgroundColor: colors.background,
+    flexDirection: 'row',
+    justifyContent: 'space-between',
+    alignItems: 'center',
+  };
+
+  return (
+    <Pressable
+      disabled={!props.onPress || props.disabled}
+      unstable_pressDelay={130}
+      onPressIn={() => {
+        setPressed(true);
+      }}
+      onPressOut={() => {
+        setPressed(false);
+      }}
+      style={[
+        styles,
+        pressed && {
+          backgroundColor: colors.fill,
+        },
+        style,
+      ]}
+      {...props}
+    />
+  );
+}

components/ListItemSeparator.jsx

@@ -0,0 +1,15 @@
+import { StyleSheet } from 'react-native';
+
+import Separator from './Separator';
+
+export default function ListItemSeparator() {
+  return (
+    <Separator
+      style={{
+        marginLeft: 15,
+        marginRight: 15,
+        marginTop: -StyleSheet.hairlineWidth,
+      }}
+    />
+  );
+}

components/ListMenu.jsx

@@ -0,0 +1,19 @@
+import { View } from 'react-native';
+
+import ReadableWidthContainer from './ReadableWidthContainer';
+
+export default function ListMenu(props) {
+  return (
+    <ReadableWidthContainer>
+      <View
+        {...props}
+        style={{
+          marginHorizontal: 15,
+          borderRadius: 24,
+          borderCurve: 'continuous',
+          overflow: 'hidden',
+        }}
+      />
+    </ReadableWidthContainer>
+  );
+}