Update special pages documentation examples and add new docs

[noisysocks]

Asana Task/Github Issue:

Description

Updating some of the docs on Netlify.

• New Tab Page
  • Removed example of setting deprecated customizer.defaultStyles.
• History
  • Update initialSetup examples to use theme and themeVariant instead of deprecated defaultStyles.
  • Add docs for onThemeUpdate subscription.
• Add new doc pages for Special Error Page and Error Page.

Testing Steps

https://deploy-preview-2079--content-scope-scripts.netlify.app/

Checklist

Please tick all that apply:

• I have tested this change locally
• I have tested this change locally in all supported browsers
• This change will be visible to users
• I have added automated tests that cover this change
• I have ensured the change is gated by config
• This change was covered by a ship review
• This change was covered by a tech design
• Any dependent config has been merged

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Note

Adds new docs for Error and Special Error pages, updates History docs with theme examples and onThemeUpdate, removes deprecated defaultStyles from New Tab example, and includes new pages in TypeDoc.

• Docs additions:
  • Special Error Page (special-pages/pages/special-error/app/special-error.md): Requests with examples (malicious site and SSL errors), error data types, onThemeUpdate subscription, notifications, and available theme variants.
  • Error Page (special-pages/pages/errorpage/app/errorpage.md): String interpolation variables, runtime theme update callback (window.onChangeTheme), and available theme variants.
• History docs (special-pages/pages/history/app/history.md):
  • Add theme/themeVariant to initialSetup examples and list available theme variants.
  • New onThemeUpdate subscription section with example payloads.
• New Tab example (special-pages/pages/new-tab/messages/examples/widgets.js): Remove deprecated customizer.defaultStyles from InitialSetupResponse example.
• TypeDoc config (typedoc.js): Include new special-error and errorpage docs in projectDocuments.

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[github-actions]

Temporary Branch Update

The temporary branch has been updated with the latest changes. Below are the details:

• Branch Name: pr-releases/pr-2079
• Commit Hash: 006b982742f7d2f22fb5bcb11d805456305f547a
• Last Updated: December 5, 2025 at 1:13:10 AM UTC
• Install Command: npm i github:duckduckgo/content-scope-scripts#006b982742f7d2f22fb5bcb11d805456305f547a

Please use the above install command to update to the latest version.

[github-actions]

[Beta] Generated file diff

Time updated: Fri, 05 Dec 2025 01:13:36 GMT