…or proper handling of duplicate tag names in different categories.

The selectedOrder array now stores objects with title and category properties.
The displaySelected function has been updated to use this additional information when displaying selected tags.
Instead of using querySelector with :contains, it iterates over all categories and checks their h2 text content to find the matching category.
Once the correct category is found, it searches for the tag with the matching title within that category.

…ected tags.