Function spawn_event_poller 

pub fn spawn_event_poller(
    tx: UnboundedSender<RawEvent>,
    poll_timeout: Duration,
    loop_sleep: Duration,
    cancel_token: CancellationToken,
) -> JoinHandle<()>

Spawn the event polling task with cancellation support

This spawns an async task that polls for crossterm events and sends them through the provided channel. The task can be cancelled using the token.

Arguments

• tx - Channel to send raw events
• poll_timeout - Timeout for each poll operation
• loop_sleep - Sleep duration between poll cycles
• cancel_token - Token to cancel the polling task