fix(banner): preserve active language when navigating to post links

Banner linkUrls come back from the API as unprefixed paths
(e.g. /browse?post=123). Navigating to them directly dropped non-English
viewers into the English version of the post. Localize both the rendered
href and the SPA navigate target via stripLangPrefix + localizePath.

src/components/FigmaBanner.tsx

@@ -11,6 +11,7 @@ import { useNavigate } from "react-router-dom";
 import { assetUrl, getJSON, itemsOrEmpty, readJSONCache } from "../api";
 import { EASE_OUT } from "../motion";
 import { langQuery, useI18n, type Lang } from "../i18n";
+import { localizePath, stripLangPrefix } from "../languageRoutes";
 
 const FIGMA_ASSET_BASE = "/assets/ark-library/figma";
 
@@ -63,6 +64,20 @@ function internalPath(linkUrl: string): string | null {
   }
 }
 
+/**
+ * Banner link URLs are stored unprefixed (e.g. `/browse?post=123`). When the
+ * viewer is on a non-English locale we must re-prefix them with the active
+ * language path (`/malay/browse?post=123`) so navigation doesn't drop into
+ * the English version of the post.
+ */
+function localizeLinkUrl(linkUrl: string, lang: Lang): string {
+  const path = internalPath(linkUrl);
+  if (!path) return linkUrl;
+  const url = new URL(path, window.location.origin);
+  const bare = stripLangPrefix(url.pathname);
+  return localizePath(bare, lang) + url.search + url.hash;
+}
+
 function toSlides(items: BannerApiItem[]): BannerSlide[] {
   return [...items]
     .sort((a, b) => (a.sortOrder ?? 0) - (b.sortOrder ?? 0))
@@ -272,33 +287,21 @@ export function FigmaBanner() {
     const path = internalPath(linkUrl);
     if (!path) return;
     event.preventDefault();
-    navigate(path);
+    navigate(localizeLinkUrl(path, lang));
   };
 
   if (slides.length === 0) return null;
 
-  // Cap the dot indicator at 10 so a long banner list never overflows the phone
-  // width. With more slides we show a 10-dot window that follows the active
-  // slide; each dot still maps to its real slide index.
-  const maxDots = 10;
-  const dotWindowStart =
-    slides.length <= maxDots
-      ? 0
-      : Math.min(
-          Math.max(activeIndex - Math.floor(maxDots / 2), 0),
-          slides.length - maxDots,
-        );
-
+  // Show every slide's dot. The row stays within the screen width and wraps to
+  // a second row (and beyond if needed) instead of overflowing horizontally.
   const pagination = hasMultiple ? (
-    <div
-      className="flex max-w-full items-center justify-center gap-1.5 md:gap-2"
-      role="tablist"
-      aria-label="Banner pagination"
-    >
-      {slides
-        .slice(dotWindowStart, dotWindowStart + maxDots)
-        .map((slide, offset) => {
-          const index = dotWindowStart + offset;
+    <div className="px-4">
+      <div
+        className="mx-auto flex max-w-full flex-wrap items-center justify-center gap-1.5 md:gap-2"
+        role="tablist"
+        aria-label="Banner pagination"
+      >
+        {slides.map((slide, index) => {
           const active = index === activeIndex;
           return (
             <button
@@ -312,7 +315,7 @@ export function FigmaBanner() {
                 setActiveIndex(index);
                 goTo(index, "smooth");
               }}
-              className={`h-1.5 rounded-full transition-all ${
+              className={`h-1.5 shrink-0 rounded-full transition-all ${
                 active
                   ? "w-6 bg-ark-gold"
                   : "w-1.5 bg-[#7C7C7C] hover:bg-white/50"
@@ -320,6 +323,7 @@ export function FigmaBanner() {
             />
           );
         })}
+      </div>
     </div>
   ) : null;
 
@@ -381,7 +385,7 @@ export function FigmaBanner() {
             >
               {slide.linkUrl ? (
                 <a
-                  href={slide.linkUrl}
+                  href={localizeLinkUrl(slide.linkUrl, lang)}
                   className="block"
                   rel="noreferrer"
                   onClick={(event) => handleSlideClick(event, slide.linkUrl!)}