Fix wasm example code

[appcypher]

Summary

This PR implements the following features

• Consolidate the graph and the interactive examples
• Make page responsive.
• Fix other minor issues.

Fixes the wasm demo app code.

Test plan (required)

• Manually testing the app

  cd crates/wasm

  wasm-pack build --target web --release && npx http-server -p 8085

  open http://localhost:8080/examples/graph/

Closing issues

N/A

[appcypher]

I'm merging this because it has little to do with the the rs/wasm implementation. It is just a simple demo app to show how rs-wnfs works.

Also since there is just one person reviewing this, this should let them focus on more important PRs.