3CX - Audio Sending Extension per yan.mantovani

✨ Features
- Integrated audio recording: Record voice messages directly in the 3CX chat with a modern floating window and intuitive controls (pause, resume, cancel, send).
- Preview before sending: Listen to your recorded audio before sending, with a custom player and action buttons.
- Custom audio player: All sent and received audios in the chat are displayed with a beautiful, responsive, and consistent player, including:
1. Microphone icon
2. Sender's name (first name only)
3. Custom progress bar
4. Large, accessible play/pause button
5. Elapsed and total time
6. Volume icon
- Supports .webm, .ogg, and .m4a audio files
- Responsive design, fully integrated with 3CX
- Does not alter the original chat layout: The message input and buttons always remain visible.