feat(i18n): `ca-valencia` language detection in Edge browser (#1828)

utils/language.ts

@@ -2,12 +2,19 @@ export function matchLanguages(languages: string[], acceptLanguages: readonly st
   {
     // const lang = acceptLanguages.map(userLang => languages.find(lang => lang.startsWith(userLang))).filter(v => !!v)[0]
     // TODO: Support es-419, remove this code if we include spanish country variants
-    const lang = acceptLanguages.map(userLang => languages.find((lang) => {
-      if (userLang.startsWith('es-') && userLang !== 'es-ES')
-        return lang === 'es-419'
+    const lang = acceptLanguages.map(userLang => languages.find((currentLang) => {
+      if (currentLang === userLang)
+        return currentLang
 
-      return lang.startsWith(userLang)
-    })).filter(v => !!v)[0]
+      // Edge browser: case for ca-valencia
+      if (currentLang === 'ca-valencia' && userLang === 'ca-Es-VALENCIA')
+        return currentLang
+
+      if (userLang.startsWith('es-') && userLang !== 'es-ES' && currentLang === 'es-419')
+        return currentLang
+
+      return currentLang.startsWith(userLang) ? currentLang : undefined
+    })).filter(v => !!v)?.[0]
     if (lang)
       return lang
   }