fix: undefined or null as projection child

[Varixo]

No description provided.

[changeset-bot]

🦋 Changeset detected

Latest commit: 976e636

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

This PR includes changesets to release 5 packages

Name	Type
@qwik.dev/core	Patch
eslint-plugin-qwik	Patch
@qwik.dev/react	Patch
@qwik.dev/router	Patch
create-qwik	Patch

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npm i https://pkg.pr.new/QwikDev/qwik/@qwik.dev/core@7376

npm i https://pkg.pr.new/QwikDev/qwik/@qwik.dev/router@7376

npm i https://pkg.pr.new/QwikDev/qwik/eslint-plugin-qwik@7376

npm i https://pkg.pr.new/QwikDev/qwik/create-qwik@7376

commit: 976e636

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Name	Status	Preview	Last Commit
qwik-docs	✅ Ready (View Log)	Visit Preview	976e636

[devcaeg]

If I am not mistaken, this PR also solves issue #7373

I must do more tests to confirm this.

[wmertens]