🔥(frontend) remove patch following upgrade of Cunningham

A patch about tabindex was added to the codebase
to fix an accessibility issue. However, after
upgrading Cunningham, the issue seems to have been
resolved and the patch is no longer necessary.
Therefore, we are removing the patch to keep
our code clean and maintainable.

src/frontend/apps/impress/src/components/modal/AlertModal.tsx

@@ -5,7 +5,7 @@ import {
   ModalDefaultVariantProps,
   ModalSize,
 } from '@gouvfr-lasuite/cunningham-react';
-import { ReactNode, useEffect } from 'react';
+import { ReactNode } from 'react';
 import { useTranslation } from 'react-i18next';
 
 import { Box } from '../Box';
@@ -35,21 +35,6 @@ export const AlertModal = ({
 }: AlertModalProps) => {
   const { t } = useTranslation();
 
-  /**
-   * TODO:
-   * Remove this effect when Cunningham will have this patch released:
-   * https://github.com/suitenumerique/cunningham/pull/377
-   */
-  useEffect(() => {
-    const timeout = setTimeout(() => {
-      const contents = document.querySelectorAll('.c__modal__content');
-      contents.forEach((content) => {
-        content.setAttribute('tabindex', '-1');
-      });
-    }, 100);
-    return () => clearTimeout(timeout);
-  }, []);
-
   return (
     <Modal
       closeOnClickOutside

src/frontend/apps/impress/src/features/docs/doc-tree/components/DocTree.tsx

@@ -271,6 +271,11 @@ export const DocTree = ({ currentDoc }: DocTreeProps) => {
       aria-label={t('Document tree')}
       aria-describedby="doc-tree-keyboard-instructions"
       $css={css`
+        /**
+        * TODO: When this pull request is merged (https://github.com/suitenumerique/ui-kit/pull/215), we 
+        * should remove the pointer-events manipulation.
+        * See: https://github.com/suitenumerique/docs/commit/d41e44dcd5a4111463b1bddfdab640faacbf1795
+        */
         /* Remove outline from TreeViewItem wrapper elements */
         .c__tree-view--row {
           outline: none !important;