addition of LearningHubTenantId value as it is in the API project

Author: OluwatobiAwe

OpenAPI/LearningHub.Nhs.OpenApi/appsettings.json

@@ -65,7 +65,7 @@
     "ContentServerUrl": "https://content.learninghub.nhs.uk/",
     "LaunchResourceEndpoint": "Resource/",
     "EmailConfirmationTokenExpiryMinutes": 30,
-    "LearningHubTenantId": "",
+    "LearningHubTenantId": "10",
     "SupportPages": "https://support.learninghub.nhs.uk/",
     "SupportForm": "https://support.learninghub.nhs.uk/support/tickets/new",
     "UseRedisCache": true,