Blog: How to Dynamically/Programmatically Update the Node-RED Dashboard 2.0 UI

### Description

I noticed that many Dashboard 2.0 users are trying to update the Dashboard 2.0 UI dynamically. I also saw some threads regarding this topic. It would be nice if we wrote a blog about it.

in this blog we will cover how to update dashboard 2.0 widgets by sending the msg payload, for example adding option to dropdown dynamically, appending classes, adding radio options, updating notification ui, etc

### Epic/Story

_No response_

### Have you provided an initial effort estimate for this issue?

I have provided an initial effort estimate