Web: when wasm32 package index becomes available, bundle wasm wheels with web app

[reynoldsnlp]

What is the problem or limitation you are having?

When #1225 is accepted, the web app will try to rely on micropip to install wasm32 binary wheels as the app loads. Lack of internet connection or index availability would break the app.

Describe the solution you'd like

Ideally, the app should already have dependency wheels packaged with the app.

Currently, there is no publicly hosted index of wasm32/pyodide/emscripten wheels, but when one becomes available, (as mentioned in pyodide/pyodide#3049), we should download an bundle the needed wheel.

Describe alternatives you've considered

Building wasm32 wheels yourself for everything? ¯\_(ツ)_/¯

Additional context

No response

[freakboy3742]

Closing as a duplicate of #1104; although there may be an interim solution possible with #1225, the core issue doesn't change as a result of introducing that workaround.