[PatchAgent] Add aria label & learn more button title for FRE dialog box

Bug: 406066256, 406066618
Change-Id: Ica5abcc94dcef4a1b79deba12baeb2d9d9e66d17
Fixed: 406066256, 406066618
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6437939
Auto-Submit: Samiya Caur <[email protected]>
Commit-Queue: Ergün Erdoğmuş <[email protected]>
Reviewed-by: Ergün Erdoğmuş <[email protected]>

Author: Samiya Caur

front_end/panels/ai_assistance/PatchWidget.ts

@@ -504,7 +504,9 @@ export class PatchWidget extends UI.Widget.Widget {
       ],
       onLearnMoreClick: () => {
         void UI.ViewManager.ViewManager.instance().showView('chrome-ai');
-      }
+      },
+      ariaLabel: lockedString(UIStringsNotTranslate.freDisclaimerHeader),
+      learnMoreButtonTitle: lockedString(UIStringsNotTranslate.learnMore),
     });
 
     if (result) {