Steps to reproduce:
1. Open any Project
2. Navigate to Window > UI Toolkit > Samples
3. Observe the Sample naming inconsistency in the Hierarchy on the left
Actual results: Sample naming is inconsistent, some are shown as code snippets ("ToggleButtonGroup", "HelpBox"), and some have spacing and proper user-facing naming with spaces ("Text Field", "Object Field")
Expected results: All Sample names should be consistently user-friendly with spaces
Reproducible with versions: 2021.3.35f1, 2022.3.16f1, 2023.1.20f1, 2023.2.9f1, 2023.3.0b6