refactor: ban unban modal icons

[alfonsobries]

Summary

Dependency of https://github.com/ArdentHQ/msq.io/pull/677

Adds the unban icons and the images used on the ban/unban confirmation modal

Checklist

• I checked my UI changes against the design and there are no notable differences
• I checked my UI changes for any responsiveness issues
• I checked my (code) changes for obvious issues, debug statements and commented code
• I provided a screenshot of my changes to the component (if applicable)
• I regenerated the icons.html file and checked if my newly added icon is shown correctly (if necessary)
• I added an explanation on how to use the component to the readme (if necessary)
• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged