Add 'Infographics' option to bookmarks menu and divider

This diff adds a new option for 'Infographics' in the bookmarks menu, along with a divider to separate it from the other options. The option is assigned the category ID of 7.

lib/views/home/bookmarks/bookmarks.dart

@@ -94,6 +94,13 @@ class _BookmarksState extends State<Bookmarks> {
                           icon: DidvanIcons.saha_regular,
                           iconSize: 24,
                         ),
+                        const DidvanDivider(),
+                        MenuOption(
+                          onTap: () => _onCategorySelected(7),
+                          title: 'اینفوگرافی',
+                          icon: DidvanIcons.info_circle_regular,
+                          iconSize: 24,
+                        ),
                       ],
                     ),
                   ),

lib/views/home/bookmarks/filtered_bookmark/filtered_bookmark.dart

@@ -40,6 +40,8 @@ class _FilteredBookmarksState extends State<FilteredBookmarks> {
         return 'تحلیل‌های رادار';
       case 6:
         return 'سها';
+      case 7:
+        return 'اینفوگرافی';
       default:
         return 'پویش';
     }