Arabic follow-ups

The tail of the localization sweep: the strings and the mirrored details the audit found after the previous release went out.

The last of the hardcoded English

Thirteen learner tab titles, the player outline, the path difficulty labels and the achievements breadcrumb still read in English whatever the reader had chosen. They are localized, and unmatched /app URLs now resolve to a real route, so a wrong address owns a title and a breadcrumb instead of rendering nothing.

Counting correctly in Arabic

Arabic agrees its nouns with the count in front of them, which a template that appends a plural cannot do. Discover now uses the correct agreement, and the details that have to mirror — the micro-lesson back arrow, the calendar chevrons — mirror.

Also in this release

Fixed

• Thirteen hardcoded learner tab titles and the achievements breadcrumb are localized.
• The player outline and the path difficulty labels read in Arabic.
• Unmatched /app URLs now resolve to a real route, so they own a title and a breadcrumb instead of rendering nothing.
• Discover uses correct Arabic count agreement, fixes the dark-mode engineering accent, and lays out the mobile hero stats.
• The micro-lesson detail back arrow mirrors in Arabic, and its indigo text token follows the theme.