tech-story: [M3-10697] - Upgrade to Storybook v10

[jaalah-akamai]

Description 📝

The app has been upgraded to Vite 7. Storybook v9 has compatibility issues and v10 is the supported line for Vite 7.

Storybook v10 is ESM-only and requires Node 20.19+ or 22.12+

https://storybook.js.org/docs/releases/migration-guide

Changes 🔄

• Bump Storybook dependencies to v10:
  • storybook, @storybook/react-vite, @storybook/addon-docs, @storybook/addon-a11y in packages/manager.
  • @storybook/react-vite in packages/ui and packages/shared.
• Validate .storybook configs (main.ts, preview.tsx, viteFinal) continue to work under v10.
• Confirm the dark mode addon compatibility. If @vueless/storybook-dark-mode is not v10-compatible, migrate to @storybook/addon-themes.
• Ensure Node used by Storybook is ≥ 20.19 or ≥ 22.12.

Scope 🚢

Upon production release, changes in this PR will be visible to:

• All customers
• Some customers (e.g. in Beta or Limited Availability)
• No customers / Not applicable

Target release date 🗓️

N/A

How to test 🧪

Verification steps

• pnpm --filter linode-manager storybook starts successfully on Node 22.19 and loads stories.
• pnpm --filter linode-manager build-storybook completes without errors.
• Docs tab renders (MDX+autodocs) without TS or runtime errors.
• Dark mode toggle works in both Canvas and Docs.
• No new ESLint/TS errors in packages/manager due to the upgrade.
• CI passes Storybook build step.

Author Checklists

As an Author, to speed up the review process, I considered 🤔

👀 Doing a self review
❔ Our contribution guidelines
🤏 Splitting feature into small PRs
➕ Adding a changeset
🧪 Providing/improving test coverage
🔐 Removing all sensitive information from the code and PR description
🚩 Using a feature flag to protect the release
👣 Providing comprehensive reproduction steps
📑 Providing or updating our documentation
🕛 Scheduling a pair reviewing session
📱 Providing mobile support
♿ Providing accessibility support

• I have read and considered all applicable items listed above.

As an Author, before moving this PR from Draft to Open, I confirmed ✅

• All tests and CI checks are passing
• TypeScript compilation succeeded without errors
• Code passes all linting rules

[bnussman-akamai]

v10 seems to be working well. Cold-starting the dev server still is a bit slow, but that's nothing new. (I think it's due to the fact tsc runs to generate the auto-doc)

[linode-gh-bot]

Cloud Manager UI test results

🔺 1 failing test on test run #5 ↗︎

❌ Failing	✅ Passing	↪️ Skipped	🕐 Duration
1 Failing	860 Passing	11 Skipped	39m 8s

Details

Failing Tests
	Spec	Test
❌	clone-linode.spec.ts	Cloud Manager Cypress Tests→clone linode » can clone a Linode from Linode details page

Troubleshooting

Use this command to re-run the failing tests:

pnpm cy:run -s "cypress/e2e/core/linodes/clone-linode.spec.ts"

[dwiley-akamai]

Not sure why there's this issue with my local configuration, but I've been unable to get it running so far: