* docs: address $effect feedback

* also add a note to the migration guide

* minor wording tweak

* update onMount docs

* Update documentation/docs/02-runes/05-$effect.md

Co-authored-by: Rich Harris <rich.harris@vercel.com>

* restore order

* soften a bit

* add back mention of updating template in response to effects

* define parent effect

* state that they don't run on the server

* Update documentation/docs/02-runes/04-$effect.md

Co-authored-by: Simon H <5968653+dummdidumm@users.noreply.github.com>

* format

* Apply suggestions from code review

Co-authored-by: Simon H <5968653+dummdidumm@users.noreply.github.com>

* update onMount docs

* add 'Understanding lifecycle' section

* note

* tweak wording

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Co-authored-by: Rich Harris <rich.harris@vercel.com>
Co-authored-by: Simon H <5968653+dummdidumm@users.noreply.github.com>

* fix null and warning for local handlers

* test

* changeset

* treat `let handler = () => {...}` the same as `function handler() {...}`

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Co-authored-by: Rich Harris <rich.harris@vercel.com>

* Adding the `closedby` attribute to dialog element

Spec: https://html.spec.whatwg.org/#attr-dialog-closedby

* Adding changeset

* Update .changeset/metal-spoons-scream.md

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Co-authored-by: Rich Harris <hello@rich-harris.dev>

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>