feature: move all shadcn related code to src/shared/shadcn

src/shared/shadcn/ui/sheet/sheet-overlay.svelte

@@ -0,0 +1,20 @@
+<script lang="ts">
+    import { cn } from '$shared/shadcn/utils/shadcn-utils.js';
+import { Dialog as SheetPrimitive } from 'bits-ui';
+
+let {
+    ref = $bindable(null),
+    class: className,
+    ...restProps
+}: SheetPrimitive.OverlayProps = $props();
+</script>
+
+<SheetPrimitive.Overlay
+    bind:ref
+    data-slot="sheet-overlay"
+    class={cn(
+        'data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 fixed inset-0 z-50 bg-black/50',
+        className,
+    )}
+    {...restProps}
+/>