Slack message action: ability to set thread ID

[dsd]

Is your feature request related to a problem? Please describe.
I'm looking to migrate from another solution to Activepieces. However, I am missing the ability to specify a Slack thread ID in the "Send a message to a channel" Slack Action.
(Overall context: By using the key/value store to store slack thread IDs after Activepieces sends messages, I would like certain subsequent messages generated by future invocations of my Activepieces flow to be sent to the Slack channel as threaded replies to the earlier message.)

Describe the solution you'd like
In the "Send Message To A Channel" action, add a field for Slack Thread ID such that the message being generated here is sent as a threaded reply to an existing message. (This is a timestamp provided by Slack API when the original message gets sent)
If left empty, a channel-level message should be sent (as it is currently). Otherwise, send the message as a reply to the specified thread.

[abuaboud]

I think this is already done by @AdamSelene

#4160

[github-actions]

⚠️COMMENT VISIBILITY WARNING⚠️

Comments on closed issues are hard for our team to see.
If this issue is continuing with the latest stable version of Activepieces, please open a new issue that references this one.