Remove root signal

[developit]

This fixes a memory leak caused by all signals being addressable from our internal ROOT signal. We never ended up using the root signal, and removing it means computed graphs within components get nicely GC'd when unmounted.

[changeset-bot]

🦋 Changeset detected

Latest commit: ad5d6f4

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

This PR includes changesets to release 1 package

Name	Type
@preact/signals-core	Patch

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[github-actions]

Size Change: +18 B (0%)

Total Size: 59.8 kB

Filename	Size	Change
docs/dist/assets/basic.********.js	220 B	+3 B (+1%)
docs/dist/assets/client.********.js	45.8 kB	-2 B (0%)
docs/dist/assets/index.********.js	1.11 kB	+46 B (+4%)
docs/dist/assets/signals-core.module.********.js	859 B	-11 B (-1%)
packages/core/dist/signals-core.js	993 B	-11 B (-1%)
packages/core/dist/signals-core.mjs	822 B	-7 B (-1%)

ℹ️ View Unchanged

Filename	Size
docs/dist/assets/signals.module.********.js	5.67 kB
docs/dist/assets/style.********.css	585 B
packages/preact/dist/signals.js	1.13 kB
packages/preact/dist/signals.mjs	1.12 kB
packages/react/dist/signals.js	798 B
packages/react/dist/signals.mjs	753 B

_{compressed-size-action}

[marvinhagemeister]

Nice 👍