Improve Slack Integration for Ideas

I'd like to be able to pick and choose what updates to send to Slack. Currently, when an idea is submitted, I'm getting 3 messages in Slack. One that the person who submitted it voted for it, that they updated the description of the idea, and that an idea was added.

Also, there are some updates that happen after the idea is created that I don't want to trigger a notification in Slack.

Finally, when a comment is made on an idea, the post made to Slack has a ton of superfluous line breaks versus filling the chat box real estate horizontally. This makes comment messages in Slack take up huge vertical real estate unnecessarily.