Feat: Add toggle to hide the uptime percentage on a statuspage

[broodroosterdev]

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Description

This PR adds a new 'Hide Uptime Percentage' setting to the status page.

Fixes #3774

Type of change

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• User interface (UI)
• 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)

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@louislam

[CommanderStorm]

all other toggles "show" something
=> please change this toggle to "show only last heartbeat" (or other naming) (default=false) as well.

[broodroosterdev]

all other toggles "show" something => please change this toggle to "show only last heartbeat" (or other naming) (default=false) as well.

Thank you for taking the time to review this PR.
Great suggestion, I have changed the code to "Show Last Heartbeat Only", and renamed all the internal variables as well.

Are there any other changes needed for this to be merged?