Add runner to Rust's ./.cargo/config.toml

[Cyborus04]

This change allows cargo run to run the game in the native runtime automatically, instead of cargo build & w4 run-native ./target/wasm32-unknown-unknown/debug/cart.wasm (or --release equivalent)

[Cyborus04]

Wait... I tested this on a crate that wasn't generated with w4 new --rust 😅
This would also need to change lib.rs to main.rs and add #![no_main]..

[aduros]

I'd be fine with renaming lib.rs, although I don't fully understand if there would be any other impacts :)

Out of curiosity, would it be better to run with w4 run (web runtime with more features) instead of w4 run-native?

[Cyborus04]

I'd be fine with renaming lib.rs, although I don't fully understand if there would be any other impacts :)

I can't think of any

Out of curiosity, would it be better to run with w4 run (web runtime with more features) instead of w4 run-native?

I chose w4 run-native simply because it, and in turn cargo run, exit immediately when the window is closed, which afaik can't be done with w4 run and has to be ctrl+c'd out of.