Change delay to double microtask for prop updates

[JoviDeCroock]

This changes the delay for property updates to be a double micro-task, we got a report that in examples like

const App = () => {
  const text = useSignal('')
  const style = useSignal('')

  const callback = (input) => {
    text.value = input.currentTarget.value
    if (text.value >= 5) { style.value = 'display:none;'}
  }

  return <input style={style} onInput={callback} value={text} />
}

In the above case the user would be able to type 6 characters while we have actually already made the input dissapear.

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Latest commit: 67ddd38

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[github-actions]

Size Change: +316 B (+0.38%)

Total Size: 83.6 kB

Filename	Size	Change
docs/dist/assets/index.********.js	836 B	+1 B (+0.12%)
docs/dist/assets/signals.module.********.js	2.16 kB	+74 B (+3.55%)
packages/preact/dist/signals.js	1.46 kB	+111 B (+8.21%)	🔍
packages/preact/dist/signals.mjs	1.43 kB	+130 B (+9.98%)	⚠️

ℹ️ View Unchanged

Filename	Size
docs/dist/assets/bench.********.js	1.59 kB
docs/dist/assets/client.********.js	46.3 kB
docs/dist/assets/jsxRuntime.module.********.js	284 B
docs/dist/assets/preact.module.********.js	4.03 kB
docs/dist/assets/signals-core.module.********.js	1.41 kB
docs/dist/assets/style.********.js	21 B
docs/dist/assets/style.********.css	1.24 kB
docs/dist/basic-********.js	243 B
docs/dist/demos-********.js	3.44 kB
docs/dist/nesting-********.js	1.13 kB
docs/dist/react-********.js	243 B
packages/core/dist/signals-core.js	1.45 kB
packages/core/dist/signals-core.mjs	1.47 kB
packages/react-transform/dist/signals-*********.js	5.03 kB
packages/react-transform/dist/signals-transform.mjs	4.27 kB
packages/react-transform/dist/signals-transform.umd.js	5.15 kB
packages/react/dist/signals.js	188 B
packages/react/dist/signals.mjs	150 B

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