[PatchWidget] Add aria-label to SelectWorkspaceDialog

Fixed: 406066256
Change-Id: I73c34f64f773d858492740ffe3bf49812fe9cb76
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6449569
Auto-Submit: Ergün Erdoğmuş <ergunsh@chromium.org>
Commit-Queue: Ergün Erdoğmuş <ergunsh@chromium.org>
Commit-Queue: Alex Rudenko <alexrudenko@chromium.org>
Reviewed-by: Alex Rudenko <alexrudenko@chromium.org>

Author: ergunsh

front_end/panels/ai_assistance/SelectWorkspaceDialog.ts

@@ -25,6 +25,10 @@ const UIStringsNotTranslate = {
    *@description Heading of dialog box which asks user to select a workspace folder.
    */
   selectFolder: 'Select folder',
+  /**
+   *@description Heading of dialog box which asks user to select a workspace folder for a11y clients.
+   */
+  selectFolderAccessibleLabel: 'Select a folder to apply changes',
   /**
    *@description Button text for canceling workspace selection.
    */
@@ -311,6 +315,7 @@ export class SelectWorkspaceDialog extends UI.Widget.VBox {
       onProjectSelected: (project: Workspace.Workspace.Project) => void,
       currentProject?: Workspace.Workspace.Project): void {
     const dialog = new UI.Dialog.Dialog('select-workspace');
+    dialog.setAriaLabel(UIStringsNotTranslate.selectFolderAccessibleLabel);
     dialog.setMaxContentSize(new UI.Geometry.Size(384, 340));
     dialog.setSizeBehavior(UI.GlassPane.SizeBehavior.SET_EXACT_WIDTH_MAX_HEIGHT);
     dialog.setDimmed(true);