The `__TAURI_POST_MESSAGE__` in init.js was depreciated in tauri 2.0

[sopaco]

the custom plugin script use TAURI_POST_MESSAGE to communicate between the Rust and JavaScript, but this property has changed in tauri since 2.0, see：https://github.com/tauri-apps/tauri/commit/a63e71f9799e9bbc82521d2f17b5238fbf690e89

why not use window.__TAURI__.invoke, a standard api in tauri？

code in tauri framework：

code in mdSilo：

[danloh]

Thanks for the suggestion.

Still working on the plugin, just do some proof of concept.