[MM-16232] ID loaded push notifications (#13137)

* Update BuildPushNotificationMessage (#12974)

* Update BuildPushNotificationMessage

* Included Category, Version, and Type

* Remove unnecessary function args

* [MM-16232] Build and return fetched notification (#13085)

* Build and return fetched notification

* Remove check on PushNotificationContents

* Ran i18n-extract

* Get UserId from session

* Re-add ReturnStatusOK

* Remove UserId from PushNotificationAck

* Always include channel name

* [MM-16232] Return after writing response and add default message (#13127)

* Return after writing response and add default message

* Include channel ID as well

* Localize default message

* Fix i18n

model/config.go

@@ -48,6 +48,7 @@ const (
 	GENERIC_NOTIFICATION            = "generic"
 	GENERIC_NOTIFICATION_SERVER     = "https://push-test.mattermost.com"
 	FULL_NOTIFICATION               = "full"
+	ID_LOADED_NOTIFICATION          = "id_loaded"
 
 	DIRECT_MESSAGE_ANY  = "any"
 	DIRECT_MESSAGE_TEAM = "team"