Fixed method for retrieving locale data

Author: FajarKim

src/card.ts

@@ -161,9 +161,11 @@ function getAnimationStyles(
  * @returns {Promise<string>} - SVG markup for the statistics card.
  */
 export default async function card(data: GetData, uiConfig: UiConfig): Promise<string> {
-  const fallbackLocale = "en";
-  const defaultLocale = locales[fallbackLocale];
-  const selectedLocale = locales[uiConfig.Locale] || defaultLocale;
+  const getLocale = (locale: string): string => {
+    return Object.keys(locales).includes(locale) ? locale : "en";
+  };
+  const activeLocale = getLocale(uiConfig.Locale);
+  const selectedLocale = locales[activeLocale];
 
   const isRtl = parseBoolean(selectedLocale.rtlDirection || false);
   const isAnimDisabled = parseBoolean(uiConfig.disabledAnimations || uiConfig.Format === "png");