Add backup shutdown feature

What does this MR do and why?

This adds a feature for backups where users can choose to shutdown their server for a backup. This adds a feature where backups will turn red on it's tab if a backup fails.

Screenshots or screen recordings

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• Have you checked this doesn't interfere/conflict/duplicate someone elses work?
• Have you fully tested your changes?
• Have you resolved any lint issues?
• Have you assigned a reviewer?
• Have you applied correct labels?
• Have you updated CHANGELOG.md?