[FEATURE] Show description for triggers and actions in workflow v3

**Is your feature request related to a problem? Please describe.**
In workflow v3, actions and triggers do not show description in the code, for example

In [the Whatsapp New Message Sent, the code contains description](https://github.com/PipedreamHQ/pipedream/blob/5349474ca3d42e8aaee3555fc63c97e457bc4382/components/whatsapp_business/sources/new-message-sent/new-message-sent.mjs#L5-L7)

When I'm creating the source on Pipedream source, it shows the description with important instructions for setting up the webhook

But on the Workflow V3 UI, there's no description shown

This sometimes make the user confuse what is the next step for their trigger to work

Actions do not show description either

**Describe the solution you'd like**
Please add the description for both triggers and actions

**Additional context**
A customer confused what is the next step for Whatsapp here: https://pipedream-users.slack.com/archives/CMZG4EBJ9/p1717966102394849