Code animation: Tick marks with keyboard zooming

This is an integration of:

• #121 Horizontal zooming
• #123 Infnite tick marks

Code

https://svelte.dev/repl/5c8cb076440c4ff9accfec6a8b422e9f?version=3.37.0

Demo

Notes

• Tick marks should scale based on zoom level, would improve performance too, because far less marks need to be rendered. Maybe it could even use a virtual list?