Internationalization followup (#500)

* add translations in data.ts

* add language list
add spanish version

* fixes pr review

* add more translations

* remove unused label

Co-authored-by: David Luzar <luzar.david@gmail.com>

src/components/LanguageList.tsx

@@ -0,0 +1,32 @@
+import React from "react";
+
+export function LanguageList<T>({
+  onClick,
+  languages,
+  currentLanguage
+}: {
+  languages: { lng: string; label: string }[];
+  onClick: (value: string) => void;
+  currentLanguage: string;
+}) {
+  return (
+    <ul>
+      {languages.map((language, idx) => (
+        <li
+          key={idx}
+          className={currentLanguage === language.lng ? "current" : ""}
+        >
+          <a
+            href="/"
+            onClick={e => {
+              onClick(language.lng);
+              e.preventDefault();
+            }}
+          >
+            {language.label}
+          </a>
+        </li>
+      ))}
+    </ul>
+  );
+}