Merge branch 'feature-restructure-frontend-apis' into feature-restructure-frontend

serializers/jsonapi/CustomTextFieldSerializer.ts

serializers/jsonapi/DeviceAttachmentSerializer.ts

serializers/jsonapi/DevicePropertySerializer.ts

serializers/jsonapi/PlatformAttachmentSerializer.ts

services/Api.ts

services/sms/ConfigurationApi.ts

services/sms/CustomfieldsApi.ts

services/sms/DeviceApi.ts

services/sms/DeviceAttachmentApi.ts

services/sms/DevicePropertyApi.ts

services/sms/PlatformApi.ts

services/sms/PlatformAttachmentApi.ts

test/serializers/jsonapi/CustomTextFieldSerializer.test.ts

test/serializers/jsonapi/DeviceAttachmentSerializer.test.ts

test/serializers/jsonapi/DevicePropertySerializer.test.ts

.../serializers/jsonapi/PlatformAttachmentSerializer.test.ts