This pull request updates the NavBarCornerRadiusScreen to improve usability by introducing a reset button for the navigation bar corner radius, refining the UI, and enhancing state management. The most significant changes are grouped below:

New Feature: Reset Button

• Added a "Reset" button that appears when the user adjusts the slider from its default value. Clicking it resets the slider to the default corner radius (DEFAULT_NAV_BAR_CORNER_RADIUS) and updates the UI accordingly. [1] [2]

UI/UX Improvements

• Changed the instructional text to clarify that the user should match the navbar shape's corners with their device's corners, improving clarity.
• Updated the layout of the top app bar and action buttons for better alignment and spacing, replacing the TextButton with a Button and using a Row for button arrangement.

State Management Enhancements

• Introduced hasBeenAdjusted state to track if the slider value has deviated from the default, controlling the visibility of the reset button. [1] [2]
• Switched from mutableStateOf to mutableFloatStateOf to fix warning,