Expand i18n locales and improve reviews UI

Add many new language packs with RTL support, refresh brand assets, and harden review rendering with tests.

Co-authored-by: Cursor <cursoragent@cursor.com>

web/src/layouts/Base.astro

@@ -183,7 +183,7 @@ const noscriptMotion =
 ---
 
 <!doctype html>
-<html lang={info.code}>
+<html lang={info.code} dir={info.dir ?? 'ltr'}>
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
@@ -249,7 +249,7 @@ const noscriptMotion =
     <link rel="preload" as="font" type="font/woff2" href={groteskLatin} crossorigin />
 
     {/*
-      The moai, in the three shapes browsers actually ask for: an SVG for anything
+      The cashu nut, in the three shapes browsers actually ask for: an SVG for anything
       modern, a 32px ICO for the bare /favicon.ico request crawlers and feed readers
       still make, and a 180px PNG for an iOS home screen.
     */}