Use web_time::time instead of std::time to prevent panic on wasm.

[94bryanr]

Using this crate on a wasm target causes an immediate panic when Instant from std::time is created. It would be great if std::time could be replaced with web_time which calls browser native time functions when built for wasm, and simply re-exports std::time when not built for wasm.

[oli-obk]

hmm. not sure how useful this crate is on wasm in web browsers. Aren't there tracing subscribers better suited for emitting structured logs debuggable in the browser with the native log viewer?