[MINI-6213] [iOS Demo app] [Universal bridge] Unable to see alert mes…

…sage when info sent to the host tab (#510)

Fixed the issue - Build failing due to compile time errors.
Due to the UniversalBridgeInfoParameters model object parameters being internal.

**LINK**
[MINI-6213](https://jira.rakuten-it.com/jira/browse/MINI-6213)

Sources/Classes/core/Models/MiniAppJavaScriptMessageInfo.swift

@@ -42,9 +42,9 @@ struct JsonStringInfoParameters: Codable {
 }
 
 public struct UniversalBridgeInfoParameters: Codable {
-    var key: String?
-    var value: String?
-    var description: String?
+    public var key: String?
+    public var value: String?
+    public var description: String?
 }
 
 struct MiniAppCustomPermissionsRequest: Decodable {