## What
Adds a new Navigation Bar section to Settings where users can customize which items appear in the bottom navigation bar.
## Features
- Pick from any of the 19 drawer screens (max 5 items)
- Remove items with a close/delete button
- Items persist via SharedPreferences (CSV format)
- Invalid names are silently dropped
- Existing screens and auth-aware filtering respected
Closes#23
M57
34df198c4d