[Penify]: Documentation for commit - 7ddb08f (#264)

Co-authored-by: penify-dev[bot] <146478655+penify-dev[bot]@users.noreply.github.com>

src/Components/LanguageSwitcher.js

@@ -1,8 +1,37 @@
 import React from "react";
 import { useTranslation } from "react-i18next";
 
+/**
+ * A functional component that provides a language switcher for the application.
+ * It allows users to change the application's language by clicking on buttons.
+ *
+ * @component
+ * @example
+ * return (
+ *   <LanguageSwitcher />
+ * );
+ *
+ * @returns {JSX.Element} A div containing buttons for switching languages.
+ * Each button, when clicked, changes the language of the application to the specified language.
+ *
+ * @throws {Error} Throws an error if the language change fails due to an invalid language code.
+ */
 const LanguageSwitcher = () => {
   const { i18n } = useTranslation();
+  /**
+   * Changes the current language of the application.
+   *
+   * This function utilizes the i18n library to switch the language 
+   * based on the provided language code. It is important to ensure 
+   * that the language code passed is supported by the i18n configuration.
+   *
+   * @param {string} lng - The language code to switch to (e.g., 'en', 'fr', 'es').
+   * @throws {Error} Throws an error if the provided language code is not supported.
+   *
+   * @example
+   * // Change the language to French
+   * changeLanguage('fr');
+   */
   const changeLanguage = (lng) => {
     i18n.changeLanguage(lng);
   };