Refines the sound placement logic in the sequencer to ensure sounds
are placed correctly within track boundaries. It restricts sound
placement to the track duration, preventing sounds from being placed
out of bounds.
Enhances the drag preview by visually indicating invalid placement
positions with a red border and "Invalid" label.
Also extracts duration and size formatting into separate utility functions
for better code organization.
feat: implement SequencerCanvas for visualizing tracks and placed sounds
feat: create SoundLibrary for draggable sound selection
feat: add TimelineControls for managing duration and zoom levels
feat: implement TrackControls for adding, removing, and renaming tracks
