Remaining items for 2.0 release

[Omar Mashaal]

• UX: Create script which allows customisation of Ultra with Routing, Data, and CSS libraries
• Deploy: Deno Deploy support
• Deploy: Netlify support #127
• Docs: Align and add to docs around useAsset and build/prod usage
• Docs: Add "general concepts' on how to integrate other libs with Ultra
• Testing: More in the wild testing (In progress)