🎨 #276 アクセシビリティ関連の以下のエラーを回避する為にButtonタグを利用するように変更

  24:9  error  Visible, non-interactive elements with click handlers must have at least one keyboard listener                                                                                                     jsx-a11y/click-events-have-key-events
  24:9  error  Avoid non-native interactive elements. If using native HTML is not possible, add an appropriate role and support for tabbing, mouse, keyboard, and touch inputs to an interactive content element  jsx-a11y/no-static-element-interaction

src/components/GlobalMenu/GlobalMenu.tsx

@@ -21,12 +21,12 @@ export const GlobalMenu: FC<Props> = ({ language, onClickCloseButton }) => {
   return (
     <div className={styles.wrapper}>
       <div className={styles['header-wrapper']}>
-        <div
+        <button
           className={styles['fa-times-wrapper']}
           onClick={onClickCloseButton}
         >
           <FaTimes className={styles['fa-times']} />
-        </div>
+        </button>
       </div>
       <div className={styles['link-group-wrapper']}>
         <div className={styles['link-wrapper']}>