🐛 Fixed contributor posts list not being scrollable

fixes https://linear.app/ghost/issue/ONC-1512/

The contributor layout used `h-full overflow-auto` on the main element
with children that also had `h-full`, constraining content to exactly
the viewport height. Changed to use a flex column pattern matching the
non-contributor SidebarInset layout so content can grow beyond the
scroll container.

Author: kevinansfield

apps/admin/src/layout/admin-layout.tsx

@@ -23,7 +23,9 @@ export function AdminLayout({ children }: AdminLayoutProps) {
     if (isContributor) {
         return (
             <div className="relative h-full bg-background">
-                <main className="h-full overflow-auto">{children}</main>
+                <main className="flex h-full flex-col overflow-y-auto">
+                    <div className="flex-1">{children}</div>
+                </main>
                 <div className="fixed bottom-3.5 left-3.5 lg:bottom-8 lg:left-8 z-20">
                     <ContributorUserMenu />
                 </div>