Fix: Refresh Certificate Expiry Times on Status Pages

[JRedOW]

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Description

Automatically refresh the certificate expiry on status pages when enabled.

Fixes #5059

Avoided E2E tests as certificate expiry on status pages are currently marked TODO. I can add api unit tests if needed (though the code is pretty simple and replicated elsewhere).

Can be merged by junior (probably @CommanderStorm since you interacted with the original issue) as there aren't any breaking changes and the changes just match an average user's expected behavior.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

Checklist

• My code follows the style guidelines of this project
• I ran ESLint and other linters for modified files
• I have performed a self-review of my own code and tested it
• I have commented my code, particularly in hard-to-understand areas (including JSDoc for methods)
• My changes generates no new warnings
• My code needed automated testing. I have added them (this is optional task)