Feature request: Toggle mode for /voice push-to-talk

Feature Request

Current behavior

/voice requires holding down the spacebar (push-to-talk) for the entire duration of recording. This is inconvenient for longer dictation sessions.

Desired behavior

Add a toggle mode option for /voice: press once to start recording, press again to stop — instead of requiring continuous key hold.

Motivation

• Holding spacebar for extended periods is ergonomically uncomfortable
• In meeting/discussion scenarios (e.g., using /voice for transcription), hands-free recording is much more practical
• A simple toggle would greatly improve the voice dictation UX

Suggested implementation

• Add a setting like voice.mode: "toggle" | "pushToTalk" (default: pushToTalk for backward compatibility)
• Or add a keybinding action voice:toggleRecord alongside the existing voice:pushToTalk