I understand you'd prefer not to add more text about what's next. Instead, we'll display the remaining categories below the active one and add an orange line to the header for visual consistency. Let's update the email-sorter.tsx file to implement these changes:

Here are the key changes and improvements:

1. We've added an orange line to the left side of the active category header, creating a visual connection to the original category selection design.
2. Instead of showing a "Next" hint, we now display the remaining categories below the active one. This provides a clear view of all available categories without cluttering the header.
3. The remaining categories are clickable, allowing users to jump directly to any category.
4. We've maintained the animations for smooth transitions between categories.
5. The circular button remains as an alternative way to navigate through categories.

These changes should provide a clean and intuitive way for users to discover and navigate through the category system without adding extra text to the header area. The orange line in the header creates a visual connection to the original design, and the remaining categories below offer a clear path for exploration.

Is this closer to what you had in mind? Would you like any further refinements or adjustments to this design?

I've fixed the category duplication issue by:

1. Using slice(0, activeCategoryIndex + 1) to only show categories up to and including the active one in the header section
2. Keeping the "Remaining Categories" section as is, which already correctly shows only the upcoming categories

This ensures each category appears exactly once in the interface, either in the header section or in the remaining categories section. Would you like any other adjustments to the interface?