fix: static-store setValue with setterFn has correct arguments

[derekrjones]

if a key is not listened to, setValue on that key incorrectly wraps the prev value in an array when passed as argument to a setterFn

const [state, setState] = createStaticStore({a: 1});
setState('a', prev => prev + 1); // prev is `[1]`, should be `1`

[changeset-bot]

🦋 Changeset detected

Latest commit: 56d9511

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 8 packages

Name	Type
@solid-primitives/static-store	Patch
@solid-primitives/audio	Patch
@solid-primitives/bounds	Patch
@solid-primitives/geolocation	Patch
@solid-primitives/media	Patch
@solid-primitives/mouse	Patch
@solid-primitives/resize-observer	Patch
@solid-primitives/scroll	Patch

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