Sidebar shadcn support

[mawnir]

please add support for Sidebar shadcn:

    --sidebar-background: 200 100% 98%;
    --sidebar-foreground: 200 20% 30%;
    --sidebar-primary: 120 60% 40%;
    --sidebar-primary-foreground: 0 0% 100%;
    --sidebar-accent: 180 40% 50%;
    --sidebar-accent-foreground: 0 0% 100%;
    --sidebar-border: 240 10% 90%;
    --sidebar-ring: 120 60% 40%;