GrafanaUI: Add two icons add-user and clip-attach

[reemtariqq]

What is this feature?

Add two icons to the uniconsadd-userand clip-attach
for more : Slack thread

Special notes for your reviewer:

Please check that:

• It works as expected from a user's perspective.
• If this is a pre-GA feature, it is behind a feature toggle.
• The docs are updated, and if this is a notable improvement, it's added to our What's New doc.

[joshhunt]

i think paperclip is a better name, but 🤷

[Aires-Grafana]

I see you @joshhunt. Same thought about the "add-user" but it is named from the Unicon official library. 🤷🏻‍♂️

[anavss]

hey folks 👋🏼 actually I just checked and the names of these icons in Unicon is add-account and attach. I think the names we are putting forward are the best ones for discoverability, but feel free if you'd like to rename - no big deal.

[joshhunt]

I don't feel strongly about this (hence why I approved - you can merge whenever you're ready), but either paperclip or attach seem like the best options to me. add-user is fine to me.

[reemtariqq]

done, i renamed it to be attach

[reemtariqq]

@joshhunt i'm not one of the authorized users to merge the PR, would you please ?