Release: Prerelease 8.0.0-alpha.7

[github-actions]

This is an automated pull request that bumps the version from 8.0.0-alpha.6 to 8.0.0-alpha.7.
Once this pull request is merged, it will trigger a new release of version 8.0.0-alpha.7.
If you're not a core maintainer with permissions to release you can ignore this pull request.

To do

Before merging the PR, there are a few QA steps to go through:

• Add the "freeze" label to this PR, to ensure it doesn't get automatically forced pushed by new changes.
• Add the "ci:daily" label to this PR, to trigger the full test suite to run on this PR.

And for each change below:

1. Ensure the change is appropriate for the version bump. E.g. patch release should only contain patches, not new or de-stabilizing features. If a change is not appropriate, revert the PR.
2. Ensure the PR is labeled correctly with one of: "BREAKING CHANGE", "feature request", "bug", "maintenance", "dependencies", "documentation", "build", "unknown".
3. Ensure the PR title is correct, and follows the format "[Area]: [Summary]", e.g. "React: Fix hooks in CSF3 render functions". If it is not correct, change the title in the PR.
   • Areas include: React, Vue, Core, Docs, Controls, etc.
   • First word of summary indicates the type: “Add”, “Fix”, “Upgrade”, etc.
   • The entire title should fit on a line

This is a list of all the PRs merged and commits pushed directly to next, that will be part of this release:

• 🐛 Bug: CLI: Fix regex used in upgrade command #25284
• ❗ Breaking Change: Addon-Docs: Upgrade to MDX3 #25303
• 🐛 Bug: CLI: Add Storyshots migration notice #25327
• 🔧 Maintenance: Core: Remove unused warnOnLegacyHierarchySeparator type #25416
• 🔧 Maintenance: Maintenance: Add comment to deprecation notice in Button component #25411
• ✨ Feature Request: Viewport: Store viewport, rotation in globals #25423
• 🐛 Bug: Vite: Fix Vite 5 CJS warnings #25005
• ❗ Breaking Change: Core: Remove vite plugins and drop Vite 3 support #25427
• ❗ Breaking Change: CLI: Remove --use-npm flag #25414
• 🔧 Maintenance: UI: Fix about page layout #25396
• 📝 Documentation: Core: Add migration notes about the removal of the shim packages #25438
• 📝 Documentation: Docs: Add migration notes about Svelte 4 #25424
• 📝 Documentation: Fix a small typo snapshot-testing.md #25395

If you've made any changes doing the above QA (change PR titles, revert PRs), manually trigger a re-generation of this PR with this workflow and wait for it to finish. It will wipe your progress in this to do, which is expected.

Feel free to manually commit any changes necessary to this branch after you've done the last re-generation, following the Make Manual Changes section in the docs, especially if you're making changes to the changelog.

When everything above is done:

• Merge this PR
• Follow the run of the publish action

---

Generated changelog

8.0.0-alpha.7

• Addon-Docs: Upgrade to MDX3 - #25303, thanks @ yannbf!
• CLI: Add Storyshots migration notice - #25327, thanks @ yannbf!
• CLI: Fix regex used in upgrade command - #25284, thanks @ yannbf!
• CLI: Remove --use-npm flag - #25414, thanks @ yannbf!
• Core: Remove unused warnOnLegacyHierarchySeparator type - #25416, thanks @ yannbf!
• Core: Remove vite plugins and drop Vite 3 support - #25427, thanks @ kasperpeulen!
• Maintenance: Add comment to deprecation notice in Button component - #25411, thanks @ yannbf!
• UI: Fix about page layout - #25396, thanks @ cdedreuille!
• Viewport: Store viewport, rotation in globals - #25423, thanks @ shilman!
• Vite: Fix Vite 5 CJS warnings - #25005, thanks @ JReinhold!

[socket-security]

New and updated dependencies detected. Learn more about Socket for GitHub ↗︎

Packages	Version	New capabilities	Transitives	Size	Publisher
@storybook/docs-mdx	3.0.0	None	+0	9.18 MB	shilman
@mdx-js/mdx	3.0.0	None	+66	2.63 MB	wooorm
@mdx-js/react	3.0.0	None	+0	13.8 kB	wooorm
@preact/preset-vite	2.7.0...2.8.1	None	+2/-2	226 kB	rschristian