Add system ringtones feature to alarm clock

[rakshitjain23]

Feature: System Ringtone Option in Alarm Settings

Added Features

• Added a new "System Ringtones" option in the alarm settings
• Integrated with device system ringtones for wider sound options
• Implemented proper UI styling with clear text contrast and icons
• Fixed visibility issues with popup menu to ensure text is readable

Implementation Details

• Added system ringtone selection dialog
• Connected to device ringtone library
• Ensured proper theming across light and dark modes
• Fixed color contrast for better visibility

Demo

before.mp4

after.mp4

Checklist

• Tests have been added or updated to cover the changes
• Documentation has been updated to reflect the changes
• Code follows the established coding style guidelines
• All tests are passing

[rakshitjain23]

@MarkisDev Please review now

[rakshitjain23]

@MarkisDev Please tell me if any changes needed?