Correct scope for Set Notification Level API endpoint

[JammyDodger]

I think you can now use the /t/<topic_id>/notifications endpoint for this:

@AlexDev

Some details about this API endpoint that are important to note:

• The API user should be an admin(so they should have global scope) to be able to change another user’s notification level.
• Endpoint URL: siteurl/t/<topic_id>/notifications
• Request type: POST
• Parameters:
  • username or external_id of the target user. If empty, the admin’s own notifcation level for the topic will be changed.
  • notification_level: integer value corresponding to the level
    • muted: 0,
    • regular: 1,
    • normal: 1, # alias for regular
    • tracking: 2,
    • watching: 3,