[log][v2] expose formatter option
As the img above show,it is useless for developer or user to see the line of the log,the real matter thing should occupy more space.
We do have that: https://docs.rs/tauri-plugin-log/latest/tauri_plugin_log/struct.Builder.html#method.format
We have that: https://docs.rs/tauri-plugin-log/latest/tauri_plugin_log/struct.Builder.html#method.format
It is rust ver and has no example.😢
Well, it's really not very efficient to sending the log to the webview and then getting it back since there can be a lot of them, so that's why it's only in the rust side, for the examples, we currently use fern under the hood, so you can take a look at https://docs.rs/fern/latest/fern/struct.Dispatch.html#method.format for now, we'll need more documentations on this though