Fix issue with head content pushed into body

[matthewp]

Changes

• Since resetInsertionMode is used when expressions are ended there needs to be something on the templateStack for nested expressions.
• There should be an inExpressionIM in the templateStack.
• Fixes https://github.com/withastro/compiler/issues/985
• Fixes https://github.com/withastro/compiler/issues/935

Testing

• New printer test

Docs

N/A, bug fix

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: a333dfa8faf0bcd656e55223f317008451a1eed4

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

This PR includes changesets to release 1 package

| Name | Type | | ----------------- | ----- | | @astrojs/compiler | Patch |

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[matthewp]

!preview head-body-content

[github-actions[bot]]

 > root@0.0.0 release /home/runner/work/compiler/compiler > changeset publish "--tag" "next--head-body-content" 🦋 warn ===============================IMPORTANT!=============================== 🦋 warn Packages will be released under the next--head-body-content tag 🦋 warn ---------------------------------------------------------------------- 🦋 info npm info @astrojs/compiler 🦋 info @astrojs/compiler is being published because our local version (0.0.0-head-body-content-20240329154053) has not been published on npm 🦋 info Publishing "@astrojs/compiler" at "0.0.0-head-body-content-20240329154053" 🦋 success packages published successfully: 🦋 @astrojs/compiler@0.0.0-head-body-content-20240329154053 🦋 Creating git tag... 🦋 New tag: @astrojs/compiler@0.0.0-head-body-content-20240329154053

[matthewp]

!preview head-body-content

[matthewp]

!preview head-body-content

[matthewp]

!preview head-body-content

[github-actions[bot]]

 > root@0.0.0 release /home/runner/work/compiler/compiler > changeset publish "--tag" "next--head-body-content" 🦋 warn ===============================IMPORTANT!=============================== 🦋 warn Packages will be released under the next--head-body-content tag 🦋 warn ---------------------------------------------------------------------- 🦋 info npm info @astrojs/compiler 🦋 info @astrojs/compiler is being published because our local version (0.0.0-head-body-content-20240329184853) has not been published on npm 🦋 info Publishing "@astrojs/compiler" at "0.0.0-head-body-content-20240329184853" 🦋 success packages published successfully: 🦋 @astrojs/compiler@0.0.0-head-body-content-20240329184853 🦋 Creating git tag... 🦋 New tag: @astrojs/compiler@0.0.0-head-body-content-20240329184853