Static index + Minification

[gfiorav]

Context

We should explore generating the index.html in a static manner (similar to templates). The benefits of this would be:

• Potentially saving download times for massive data.json
• Simplified frotend script logic
• Lends itself well to minification
• Single source of truth for categories/artists

[gfiorav]

This is made unnecessary by #29

[gfiorav]

Done in #14