fix(settings): guard empty-token copy, search platform filter and clear button

components/settings/index/SettingsSearchBar.tsx

@@ -1,7 +1,7 @@
 import { Ionicons } from "@expo/vector-icons";
 import { t } from "i18next";
 import type React from "react";
-import { TextInput, View } from "react-native";
+import { TextInput, TouchableOpacity, View } from "react-native";
 
 export const SettingsSearchBar: React.FC<{
   value: string;
@@ -17,7 +17,12 @@ export const SettingsSearchBar: React.FC<{
       className='flex-1 ml-2 text-white text-[15px]'
       autoCapitalize='none'
       autoCorrect={false}
-      clearButtonMode='while-editing'
+      returnKeyType='search'
     />
+    {value.length > 0 ? (
+      <TouchableOpacity onPress={() => onChange("")} hitSlop={8}>
+        <Ionicons name='close-circle' size={18} color='#76767c' />
+      </TouchableOpacity>
+    ) : null}
   </View>
 );

components/settings/index/settingsSearchIndex.ts

@@ -3,6 +3,7 @@ export interface SearchableOption {
   parentRoute: string;
   parentTitleKey: string;
   keywords?: string[];
+  platforms?: ("ios" | "android")[];
 }
 
 /**

components/settings/index/useSettingsSearch.ts

@@ -35,6 +35,7 @@ export const useSettingsSearch = (query: string): SearchResult[] => {
       }
     }
     for (const o of SETTINGS_SEARCH_INDEX) {
+      if (o.platforms && !o.platforms.includes(os)) continue;
       if (matchesQuery({ title: t(o.titleKey), keywords: o.keywords }, query)) {
         results.push({
           id: `${o.parentRoute}#${o.titleKey}`,