Add unban icon

[niko-gardenanet]

Icon name

unban

Use cases

We already have the ban icon and I need an icon to unban a user.

Design ideas

Checklist

• [X] I have searched if someone has submitted a similar issue before and there weren't any. (Please make sure to also search closed issues, as this issue might already have been resolved.)
• [X] I have searched existing icons to make sure it does not already exist and I didn't find any.
• [X] I am not requesting a brand logo and the art is not protected by copyright.
• [X] I am not requesting an icon that includes religious, political imagery or hate symbols.
• [X] I have provided appropriate use cases for the icon(s) requested.