Fix deprecated parameters js warning

[paul-hansen]

Fixes the browser js console warning when running Leptos apps:

using deprecated parameters for the initialization function; pass a single object instead

I figured it out by following the link in the wasm-bindgen changelog entry:

Deprecated parameters to default (init) and initSync in favor of an object. rustwasm/wasm-bindgen#3995

Which told me it was our calling of the default function that was changed/deprecated, and I looked at the changed examples to see how it should be now be called with an object like {module_or_path: path} here:
https://github.com/daxpedda/wasm-bindgen/blob/152dcf22f241d0245cccd97e5d1bd3286ebc5514/examples/websockets/index.js#L4

I tested it with the hackernews_axum example and the warning no longer showed up with this change.

[benwis]

Glad you found this, that always bugged me

[paul-hansen]

Same. I was about to try to figure out how to filter it out in my app to prevent warning fatigue, decided I should be a good citizen and try to track it down first.

[tetuaoro]

Hi, thank you. My website should reach 💯 at pagespeed insight now 😂. Big ❤️

[gbj]

Thanks!