Added back the right border on the track controls column to visually separate the controls from the waveform area. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
Added back the right border on the track controls column to visually separate the controls from the waveform area. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>