Add end to end testing

[srid]

We want to test the final nix build web app.

The official leptos templates use playwright to do this:

https://github.com/leptos-rs/start-axum/tree/main/end2end

While we may do the same, I'd like to first explore (briefly) the option of being able to write tests in pure Rust. For eg., there is playwright-rust, but it seems unmaintained. Are there other options?

Exhausting all that, we may just use something like playwright.

[srid]

There is also: https://github.com/stevepryde/thirtyfour

[srid]

To begin with, we can test that the Nix version is showing up correctly in the DOM (see #12).

[divinenaman]

@srid can I take this up ?

[srid]

@srid can I take this up ?

Sure.

[divinenaman]

@srid playwright test also works on darwin

[srid]

Replied here, in the context of the PR: #24 (comment)

[divinenaman]

@srid separated playwright PR