Clear tokens on error

Author: lswiderski

src/MiScaleExporter.MAUI/Services/GarminService.cs

@@ -139,6 +139,8 @@ private async Task<GarminApiResponse> UploadViaDirectCallToGarminAsync(BodyCompo
             var errorlogs = LogService.GetErrorLogs();
             _logService.LogError(ex?.Message);
             result.Message = ex.Message;
+            result.AccessToken = string.Empty;
+            result.TokenSecret = string.Empty;
             return result;
         }