Add Mute Button to Voice Chat Interface

[davis9001]

As a user of the voice chat interface in Apollo,
I want to have a visible mute button
So that I can stop the microphone from transmitting audio to the AI when needed.

Acceptance Criteria

• Given I am in a voice chat session, when I press the mute button, then the AI should stop receiving audio input from my microphone.
• Given the microphone is muted, when I press the unmute button, then the AI should start receiving audio input from my microphone again.

Additional Details

• The mute button should provide a clear indicator of its status (muted or unmuted).
• Ensure that unmuting re-establishes the microphone connection smoothly.

Definition of Done

• A visible mute button is integrated into the voice chat interface.
• The mute and unmute functions work as expected, controlling the audio transmission.
• Proper documentation and usage instructions are provided for the mute button.