Make the theme render translations: row titles, dates, plurals and hard-coded strings

Problem/Motivation

The theme prints several strings and values in a way that stays in the site's default language when a second language is installed, so translated pages mix languages. Found by crawling a right-to-left translation of The Rightup and reading the markup.

• Episode lists (views-view-fields--podcast-episodes--by-podcast and --more-by-podcast) print row._entity.label, the default-language title, next to a summary in the row's language.
• The date atom prints date|date('M j, Y'), which never localizes month names, and the live feed item does the same for its time.
• The hero slider scripts write "Play" and "Pause" directly instead of through Drupal.t.
• About twenty component templates print English without |t (labels, placeholders, alternative text).
• The podcast episode count joins a number and a word, which cannot follow a language's plural forms (some languages have six).
• The Share component prints each platform title as stored in the Webshare table, so no translation can reach it.

Steps to reproduce

1. Install The Rightup, add a second language with translated episodes, and open the translated show page, for example /<langcode>/podcasts/field-notes.
2. Episode titles are in the default language, the summaries in the page language. Dates read "Jul 16, 2026". The ticker time is "12:00 PM".

Proposed resolution

• Read the row title through the view's own title field, so it follows the row's translation.
• Print dates with format_date and a translatable pattern (context "PHP date format") so the interface language names the month and can reorder the parts. The datetime attribute stays ISO.
• Use Drupal.t in the slider scripts and declare core/drupal.
• Wrap the remaining component strings in |t, use {% trans %} with a plural for the episode count, and pass the Share titles through |t.

Strings that come from Canvas inputs or config (headers, labels typed in the editor) are out of scope: they are translated per language, not by the theme.

Remaining tasks

• ✅ File an issue
• ✅ Addition/Change/Update/Fix
• ❌ Testing to ensure no regression
• ❌ Automated unit/functional testing coverage
• ➖ Developer Documentation support
• ➖ User Guide Documentation support
• ➖ UX/UI designer responsibilities
• ❌ Accessibility and Readability
• ❌ Reviewed by a human
• ❌ Code review by maintainers
• ❌ Full testing and approval
• ❌ Credit contributors
• ❌ Review with the product owner
• ❌ Update Release Notes
• ❌ Release

User interface changes

• None in English. Translated pages keep each row, date and label in one language.

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• None in English. Translated pages keep each row, date and label in one language.

AI-Generated: Yes. Drafted and tested with Claude Code, reviewed by the contributor.