ui: Fix wrapping in the banner component (#34516)

Also removing the `icon` field as the banner component always renders
with an icon anyway. Hopefully, this fixes any weird text wrapping that
was happening before.

Release Notes:

- N/A
ee4b9a27a2Danilo Leal committed on 7/16/2025, 2:51:12 AM· committed by GitHubparentae65ff9
1 file changedLine totals unavailable