Docs: Fix typos in the codebase and examples

[msmx-mnakagawa]

What I did

I just fixed tiny typos in comments as the followings.

• wasnt'possible → wasn't possible
• taht → that
• overriden → overridden

Checklist for Contributors

Testing

The changes in this PR are covered in the following automated tests:

• stories
• unit tests
• integration tests
• end-to-end tests

Manual testing

Caution

This section is mandatory for all contributions. If you believe no manual test is necessary, please state so explicitly. Thanks!

This PR only includes comment and documentation updates and has no impact on runtime behavior.
Therefore, I believe no manual test is necessary.

Documentation

• Add or update documentation reflecting your changes
• If you are deprecating/removing a feature, make sure to update
  MIGRATION.MD

Checklist for Maintainers

• When this PR is ready for testing, make sure to add ci:normal, ci:merged or ci:daily GH label to it to run a specific set of sandboxes. The particular set of sandboxes can be found in code/lib/cli-storybook/src/sandbox-templates.ts

• Make sure this PR contains one of the labels below:

  Available labels

  • bug: Internal changes that fixes incorrect behavior.
  • maintenance: User-facing maintenance tasks.
  • dependencies: Upgrading (sometimes downgrading) dependencies.
  • build: Internal-facing build tooling & test updates. Will not show up in release changelog.
  • cleanup: Minor cleanup style change. Will not show up in release changelog.
  • documentation: Documentation only changes. Will not show up in release changelog.
  • feature request: Introducing a new feature.
  • BREAKING CHANGE: Changes that break compatibility in some way with current major version.
  • other: Changes that don't fit in the above categories.

🦋 Canary release

This PR does not have a canary release associated. You can request a canary release of this pull request by mentioning the @storybookjs/core team here.

core team members can create a canary release here or locally with gh workflow run --repo storybookjs/storybook publish.yml --field pr=<PR_NUMBER>

Summary by CodeRabbit

• Chores
  • Fixed spelling and grammar corrections in comments and documentation across multiple files.

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[coderabbitai]

📝 Walkthrough

Walkthrough

This PR corrects spelling and grammar errors in comments and documentation across three files. Changes include fixing "wasnt'possible" to "wasn't possible", "taht" to "that", and "overriden" to "overridden". No functional or behavioral modifications.

Changes

Cohort / File(s)	Change Summary
Comment typo corrections code/core/src/preview-api/modules/store/csf/portable-stories.ts, code/lib/eslint-plugin/src/rules/no-uninstalled-addons.ts	Fixed comment spelling errors: "wasnt'possible" → "wasn't possible" and "taht" → "that"
Documentation spelling fixes docs/_snippets/mount-advanced.md	Corrected "overriden" → "overridden" in multiple comment instances across story examples

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

✨ Finishing touches

• 📝 Generate docstrings

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[jonniebigodes]

@msmx-mnakagawa, thanks for taking the time to put together this pull request and helping us improve Storybook by catching these minor typos in both the docs and the codebase. We appreciate it 🙏 !

I've checked, and all is good on my end.

I'm going to merge this once the checklist clears.

Hope you have a great day

Stay safe