remove lix.settled() for awaiting the change queue in select from change

[samuelstroschein]

Proposal

Remove settled() for awaiting the change queue in select queries to the change table.

Pros

• glitch free behavior (because calling settled() is not forgotten)
• decreased API surface

Cons

• RxJS internally

Context

The need for lix.settled() doesn't exist if select queries to table that the change queue impacts are awaited while the queue is running.

// the query awaits the change queue
const changes = await lix.db.selectFrom("change").selectAll().execute()

// pseudocode kysely plugin that awaits an observable

async function interceptSelect(query){
  if (query.table === "change"){
    await state.changeQueueSettled
    return query
  }
} 

// the settled awaits the last emitted value of the change queue
state.changeQueueSettled = lastValueOf(state.changeQueue$)