[feature]: Add Abort.ignore

[steinybot]

Problem Statement

There are some cases where you want to use Abort for short circuit but you don't really care about the failure.

An example that came up in #1378 (comment) is:

    private def emitElementsFromChannel[V](channel: Channel[V])(using Tag[Emit[Chunk[V]]], Frame) =
        val emit = Loop.forever:
            channel.take.map: v =>
                Abort.recover[Closed](_ => Chunk.empty)(channel.drain).map: chunk =>
                    val fullChunk = Chunk(v).concat(chunk)
                    Emit.value(fullChunk)
        Abort.run[Closed](emit).unit
    end emitElementsFromChannel

In that case we don't care about the failure or success.

Proposed Solution

Something like:

Abort.ignore[Closed]

which returns Unit < (S & reduce.SReduced)

Alternative Solutions

No response

Current Workaround

The workaround is not very bad at all so this is only a very minor improvement:

Abort.run[Closed](emit).unit

Additional Context

No response