[Discord] Service URL should only be included if defined

[OnCloud125252]

⚠️ Please verify that this bug has NOT been raised before.

• I checked and didn't find similar issue

🛡️ Security Policy

• I agree to have read this project Security Policy

Description

This is what I received from the Discord notification webhook when one of the child services of a group I created went down. It display a section Service URL with a value https://. I don't think this section is necessary since it's a group and there's no related configuration in the settings.

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The similar situation happened when the service is up. The section Service URL display https://. And the Ping section display N/A.

👟 Reproduction steps

Set up a Discord notification and enable it in a group.

👀 Expected behavior

• For both Up and Down notification
  • The Service URL section should maintain empty since there's nothing to display with the URL.
  • Alternatively, I suggest it to display a list of the child services that are unreachable.
• For Up notification
  • The Ping section should be remove or replace with other informations.

😓 Actual Behavior

The notification display unnecessary informations.

• For both Up and Down notification
  • The section Service URL display a value https://.
• For Up notification
  • The section Ping display a value N/A.

🐻 Uptime-Kuma Version

1.22.0

💻 Operating System and Arch

Ubuntu 22.04.2

🌐 Browser

No browser, it happens in Discord.

🐋 Docker Version

No response

🟩 NodeJS Version

16.20.1

📝 Relevant log output

No response

[CommanderStorm]

what kind of monitor are you using?
Could this be another symptom of the issue discussed in #3274

[OnCloud125252]

@CommanderStorm

1. In the latest release (1.22.0) there's a new monitor type named Group and it is supposed to monitor the child monitors, not the URL. So there shouldn't be a section named Service URL in the notification.
2. I've seen that issue, I believe that my issue is different from the one you provided.