Schedules can be deleted by users without delete permissions

[JamesLowther]

Current Behavior

A user that does not have Delete permissions for schedules is able to delete existing schedules.

Expected Behavior

A user without Delete permissions for schedules will be unable to delete existing schedules.

Steps to Reproduce

1. Create a schedule on a server.
2. Invite a user to that server with the following permissions:

• Note that Delete is not checked.
• 

3. Log in to the panel with that user.
4. Navigate to the server schedules.
5. Click Delete on a schedule.
6. Notice that the schedule was deleted.

Note: create and edit actions on the schedules are correctly returning 403 responses.

Panel Version

v1.0.0-beta28

Wings Version

v1.0.0-beta19

Games and/or Eggs Affected

No response

Docker Image

No response

Error Logs

Panel and wings are running in Docker. No error logs to stdout/stderr when deleting the schedule.

Is there an existing issue for this?

• [x] I have searched the existing issues before opening this issue.
• [x] I have provided all relevant details, including the specific game and Docker images I am using if this issue is related to running a server.
• [x] I have checked in the Discord server and believe this is a bug with the software, and not a configuration issue with my specific system.

[JamesLowther]

Upon further testing, I've identified the same problem with backups as well. The user does not have Delete permissions on backups, but can delete existing backups from a server.

This problem may not be isolated to just the schedules page, but for all delete permissions.

[Boy132]

This is tied to #1831