Plasmoid Visualizer v1.1 - Refined

This update focuses on polishing the user experience.

Streamlined Widget Experience

Focused on Live Mode: Removed the file playback and path input from the Plasma widget. This simplifies the UI and focuses on the widget's primary purpose: real-time system audio visualization.
Cleaner UI: The widget now only shows the essential controls (Device Selection and Refresh), leaving more room for the beautiful spectrum bars.