Fixing basque language name hydration issues on Google Chrome (#1415)

website/src/lib/languages.ts

@@ -0,0 +1,13 @@
+/**
+ * Returns the locale's name.
+ */
+export const getLocaleDisplayName = (locale, displayLocale = undefined) => {
+  // Different browsers seem to handle "eu" differently from the Node server.
+  // Special case this to avoid a hydration failure.
+  if (locale === "eu") {
+    return "Eurakasa";
+  }
+  const displayName = new Intl.DisplayNames([displayLocale || locale], { type: "language" }).of(locale);
+  // Return the Titlecased version of the language name.
+  return displayName.charAt(0).toLocaleUpperCase() + displayName.slice(1);
+};