Fixed HTML entities appearing in Portal toast and heading text

[weylandswart]

Closes https://linear.app/ghost/issue/DES-1368/handle-apostrophes-in-names-in-portal, https://linear.app/ghost/issue/DES-1359/newsletter-names-with-and-display-incorrectly-in-popups

i18next was escaping apostrophes and ampersands in interpolated values, mangling things like the subscribe toast. Disabled escaping for the portal namespace and removed three older per-call workarounds.

Before	After

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ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between f142986 and 72ab130.

📒 Files selected for processing (4)

• apps/portal/package.json
• apps/portal/src/components/pages/offer-page.js
• apps/portal/src/components/pages/recommendations-page.js
• ghost/i18n/lib/i18n.js

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Walkthrough

This PR consolidates i18n interpolation handling for the portal package. The i18n factory in ghost/i18n/lib/i18n.js is updated to route the portal namespace through theme-specific resource generation alongside the existing theme namespace. Corresponding portal UI components in offer-page.js and recommendations-page.js remove explicit interpolation: { escapeValue: false } configuration from their translation calls, delegating interpolation behavior to the i18n infrastructure. The portal package version is bumped to 2.68.34.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main fix: disabling HTML entity escaping in Portal UI text (toast and headings). It directly relates to the changeset's core purpose.
Description check	✅ Passed	The description clearly explains the issue (HTML entities appearing in interpolated values), the solution (disabling escaping for portal namespace), and includes before/after screenshots demonstrating the fix.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

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• Commit unit tests in branch weyland-des-1368-handle-apostrophes-in-names-in-portal

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