Maintenance update:
- Improved accessibility labels on the settings page.
- Added clearer messages when a custom sound file cannot be saved.
- Reduced requested permissions by removing an unnecessary tabs permission.
- Cleaned up internal extension metadata and settings code.

Small update: refined the extension action title shown by the browser.

Added a toolbar/Extensions menu action for easier access to the settings page.

Users can now open Simple Navigational Sounds settings directly from the browser’s Extensions menu.

Version 1.0.1

• Added automatic light and dark theme support for the settings page based on the browser/system theme.
• Enabled the Navigation complete sound by default for new installations.
• Added extension icons for store and browser display.