refac: language detection

src/lib/utils/index.ts

@@ -750,6 +750,11 @@ export const extractFrontmatter = (content) => {
 // Function to determine the best matching language
 export const bestMatchingLanguage = (supportedLanguages, preferredLanguages, defaultLocale) => {
 	const languages = supportedLanguages.map((lang) => lang.code);
-	const match = preferredLanguages.find((lang) => languages.includes(lang));
+
+	const match = preferredLanguages
+		.map((prefLang) => languages.find((lang) => lang.startsWith(prefLang)))
+		.find(Boolean);
+
+	console.log(languages, preferredLanguages, match, defaultLocale);
 	return match || defaultLocale;
 };