[Feature Request] Allow interrupting the text generation

[felladrin]

Currently, it seems there is no way to send a signal to interrupt the text generation in the model.run().

ratchet/crates/ratchet-web/src/model.rs

Lines 170 to 175 in 4ff7092

	/// User-facing method to run the model.
	///
	/// Untyped input is required unfortunately.
	pub async fn run(&mut self, input: JsValue) -> Result<JsValue, JsValue> {
	self.inner.run(input).await
	}

My current workaround is to call location.reload() to interrupt it.

[FL33TW00D]

Agreed - we should offer a cancellation callback.