make time cache key less likely to collide with real keys

[mmkal]

I noticed that you can break the swr behaviour by using a key ending in _time.

Example:

const swr = createStaleWhileRevalidateCache({
    minTimeToStale: 5000,
    storage,
})

const getRandom = async () => {
    await new Promise(resolve => setTimeout(resolve, 20))
    return Math.random()
}

const log = ({value, ...rest}) => {
    console.log(value, JSON.stringify(rest))
}

await swr('test', getRandom).then(log)
await swr('test_time', getRandom).then(log)
await swr('test', getRandom).then(log)
await new Promise(resolve => setTimeout(resolve, 1000))
await swr('test', getRandom).then(log)

This just makes this less likely to happen by mistake

[jperasmus]

Thanks, this looks like a more sensible SWR cache key suffix. If you fix the Prettier formatting issue, I'd be happy to merge this in (assuming the build passes after that).

[mmkal]

Did the fix by hand 😬

Looks green now. Thanks for the great lib btw!

[jperasmus]

Thanks for your fix! I'm glad you're getting some value from the lib.

[jperasmus]

Now available as v3.4.1