feat: make it possible to configure Ws config

[1makarov]

closes #1504

[mattsse]

needs fmt and clippy, can't apply myself because opened from main branch

[DaniPopes]

Any downsides to this?

[mattsse]

only that this breaks exhaustive WsConnect {} usage, by default this still uses the default tungs. config but now this can be configured on WsConnect manually

[1makarov]

Any downsides to this?

Those who use the WsConnect::with_auth(url, header) construct will have to update to WsConnect::new(url).with_auth(header)