Fix remaining SDK 36 deprecation warnings in Java files

Suppress announceForAccessibility deprecation in CommentDetailFragment,
WPMainActivity, and MediaPickerUtils. Replace deprecated Locale
constructor with Locale.Builder in GutenbergUtils.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: nbradbury

WordPress/src/main/java/org/wordpress/android/ui/comments/CommentDetailFragment.java

@@ -1480,10 +1480,11 @@ private void likeComment(
                     .OnNoteCommentLikeChanged(mNote, actionBinding.btnLike.isActivated()));
         }
 
-        actionBinding.btnLike.announceForAccessibility(
-                getText(actionBinding.btnLike.isActivated() ? R.string.comment_liked_talkback
-                        : R.string.comment_unliked_talkback)
-        );
+        @SuppressWarnings("deprecation")
+        CharSequence announcement = getText(actionBinding.btnLike.isActivated()
+                ? R.string.comment_liked_talkback
+                : R.string.comment_unliked_talkback);
+        actionBinding.btnLike.announceForAccessibility(announcement);
     }
 
     private void toggleLikeButton(
@@ -1667,6 +1668,7 @@ public void onCommentChanged(OnCommentChanged event) {
         }
     }
 
+    @SuppressWarnings("deprecation")
     private void announceCommentStatusChangeForAccessibility(CommentStatus newStatus) {
         int resId = -1;
         switch (newStatus) {

WordPress/src/main/java/org/wordpress/android/ui/main/WPMainActivity.java

@@ -1140,6 +1140,7 @@ private void popupSnackbarForCompleteUpdate() {
                   .show();
     }
 
+    @SuppressWarnings("deprecation")
     private void announceTitleForAccessibility(PageType pageType) {
         getWindow().getDecorView().announceForAccessibility(mBottomNav.getContentDescriptionForPageType(pageType));
     }

WordPress/src/main/java/org/wordpress/android/util/MediaPickerUtils.java

@@ -8,6 +8,7 @@
 import org.wordpress.android.R;
 
 public class MediaPickerUtils {
+    @SuppressWarnings("deprecation")
     public static void announceSelectedMediaForAccessibility(@NonNull ImageView imageThumbnail,
                                                              boolean isVideo,
                                                              boolean itemSelected) {

libs/editor/src/main/java/org/wordpress/android/editor/gutenberg/GutenbergUtils.java

@@ -30,7 +30,7 @@ public static Boolean isDarkMode(Context context) {
     @SuppressLint("AppBundleLocaleChanges")
     public static Bundle getTranslations(Activity activity) {
         Bundle translations = new Bundle();
-        Locale defaultLocale = new Locale("en");
+        Locale defaultLocale = new Locale.Builder().setLanguage("en").build();
         Resources currentResources = activity.getResources();
         Context localizedContextCurrent = activity
                 .createConfigurationContext(currentResources.getConfiguration());