fix: Return Empty Result (#21)

On iOS, When there are no keys associated with a store, return empty string instead of `nil`.

Author: OS-ricardomoreirasilva

CHANGELOG

@@ -4,6 +4,8 @@ Changelog
 Unreleased
 ------------------
 
+- Fix: [iOS] When there are no keys associated with a store, return empty string instead of `nil`.
+
 2.6.8-OS14 - 2022-11-09
 ------------------
 

src/ios/SecureStorage.swift

@@ -132,7 +132,7 @@ extension SecureStorage: PlatformProtocol {
             ]
             pluginResult = CDVPluginResult(status: CDVCommandStatus_ERROR, messageAs: errorDict);
         } else if let result = result {
-            pluginResult = result.isEmpty ? CDVPluginResult(status: CDVCommandStatus_OK) : CDVPluginResult(status: CDVCommandStatus_OK, messageAs: result)
+            pluginResult = CDVPluginResult(status: CDVCommandStatus_OK, messageAs: result)
         }
 
         self.commandDelegate.send(pluginResult, callbackId: callBackID);