Ensure session data is always returned

[AlecAivazis]

Fixes #1405

This PR fixes an issue with the transformation of the root layout if it included an early return. Previously the logic would look for a single value returned but now we look for any return in the function and ensure that the necessary values are included

cc @Rudedog9d

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🦋 Changeset detected

Latest commit: 5e69c69

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

This PR includes changesets to release 2 packages

Name	Type
houdini-svelte	Patch
houdini-plugin-svelte-global-stores	Patch

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[Rudedog9d]

@AlecAivazis I was able to successfully test this against the test project from the original issue.

Steps for testing were:

# clone and setup houdini
git clone [email protected]:HoudiniGraphql/houdini.git
pnpm i

# build on main to replicate original issue
pnpm build

# install local houdini-svelte in test project
npm i ../houdini/packages/houdini-svelte/

# verify the server outputs "fetchParams session {}"
npm run dev

# checkout this branch
git checkout root-layout-load

# rebuild houdini-svelte - I used some extra options here because I was getting some issues with old code being cached
pnpm i && pnpm build --no-cache --force

# re-install local houdini-svelte in test project
npm i ../houdini/packages/houdini-svelte/

# verify the server outputs "fetchParams session { token: 'asdf' }"
npm run dev

I was able to successfully switch between main and this branch with expected results several times using this method 👍

[AlecAivazis]

Thanks for the detailed summary of the steps you took @Rudedog9d!