clients page: make add form a modal

src/lib/components/ui/dialog/dialog-overlay.svelte

@@ -0,0 +1,21 @@
+<script lang="ts">
+	import { Dialog as DialogPrimitive } from "bits-ui";
+	import { fade } from "svelte/transition";
+	import { cn } from "$lib/utils.js";
+
+	type $$Props = DialogPrimitive.OverlayProps;
+
+	let className: $$Props["class"] = undefined;
+	export let transition: $$Props["transition"] = fade;
+	export let transitionConfig: $$Props["transitionConfig"] = {
+		duration: 150,
+	};
+	export { className as class };
+</script>
+
+<DialogPrimitive.Overlay
+	{transition}
+	{transitionConfig}
+	class={cn("bg-background/80 fixed inset-0 z-50 backdrop-blur-sm", className)}
+	{...$$restProps}
+/>