Show a scheduled notice across the workspace or on one project, styled by severity and optionally dismissible.
Documented for version 1.2.2 · Verified against 932d12e
A notice at the top of the page: planned maintenance on Saturday, a release
going out, a process changing on Monday. One Global banner for the whole
workspace, plus a Project banner per project for things only that team needs
to read. Each has a severity style, a schedule, and a choice about whether
people may dismiss it.
