feat: card locale translations (#509)

* Add Card Translations

* Add tests and documentation for `?lang` option

* Card Translations: update Italian

* Run Prettier

* Correct German Translations.

Co-authored-by: schmelto <30869493+schmelto@users.noreply.github.com>

* refactor: added i18n class to manage translation logic & improved code

* Make the new src/translations.js more concise

* Update translations.js

Co-authored-by: schmelto <30869493+schmelto@users.noreply.github.com>

* Revert 4175484d69289e4ee7283ab968b8e71c3c5d77df

* fix: overlap because of language length

Co-authored-by: lrusso96 <russo.1699981@studenti.uniroma1.it>
Co-authored-by: schmelto <30869493+schmelto@users.noreply.github.com>
Co-authored-by: Anurag <hazru.anurag@gmail.com>

tests/renderWakatimeCard.test.js

@@ -113,4 +113,15 @@ describe("Test Render Wakatime Card", () => {
           "
     `);
   });
+
+  it("should render translations", () => {
+    document.body.innerHTML = renderWakatimeCard({}, { locale: "cn" });
+    expect(document.getElementsByClassName("header")[0].textContent).toBe(
+      "Wakatime周统计",
+    );
+    expect(
+      document.querySelector('g[transform="translate(0, 0)"]>text.stat.bold')
+        .textContent,
+    ).toBe("本周没有编码活动");
+  });
 });