add app version to sync service

LeStorage/Services.swift

@@ -351,6 +351,7 @@ public class Services {
         var request = URLRequest(url: url)
         request.httpMethod = HTTPMethod.get.rawValue
         request.setValue("application/json", forHTTPHeaderField: "Content-Type")
+        request.addAppVersion()
         
         if self._isTokenRequired(type: T.self, method: apiCall.method), StoreCenter.main.isAuthenticated {
             let token = try StoreCenter.main.token()
@@ -397,6 +398,7 @@ public class Services {
         request.setValue("application/json", forHTTPHeaderField: "Content-Type")
         let token = try StoreCenter.main.token()
         request.addValue("Token \(token)", forHTTPHeaderField: "Authorization")
+        request.addAppVersion()
 
         let modelName = String(describing: T.self)
         let operations = apiCalls.map { apiCall in