Analytics shouldn't show fractional graph points

[jsoref]

Describe the bug

Readers, Follower, Reactions, and Comments are all whole number items, you can't have a fraction of any of them. As such, graphs that do are confusing / unhelpful / superfluously noisy

To Reproduce

1. Create an account
2. Use it over the span of a month
3. Visit the /dashboard/analytics endpoint
4. Switch to the Infinity view

Expected behavior

The Y axis should not show fractional values, if that means the only lines are 0 and 1, that's ok. It shouldn't show 0.5 and it shouldn't show 1.0 (it should show 1, there is no more precision available)

Screenshots

Desktop (please complete the following information):

• OS, version: macOS Big Sur
• Browser, version: Chrome/96.0.4664.55

Additional context

[github-actions]

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