GlassVerticalBar.disabled constructor
Keeps the bars in child horizontal under a strip.
For a column the strip does not belong to. Natively a
UISplitViewController gives the strip to the column against it, and the
column beside it keeps a horizontal tab bar and navigation bar; wrap that
column in this.
A GlassPinnedBarChrome or GlassAppBar.pinned inside it stays out of the GlassNavigationShell while the shell has a strip, and draws its chrome in-route: the shell pins chrome against the window, not against the column.
Implementation
const GlassVerticalBar.disabled({super.key, required super.child})
: data = null;