Re work modal scrolling

src/lib/components/Modal.svelte

@@ -0,0 +1,17 @@
+<script lang="ts">
+  import cx from "classnames"
+  import type {Snippet} from "svelte"
+
+  interface Props {
+    tag?: string
+    class?: string
+    children?: Snippet
+    [key: string]: any
+  }
+
+  const {children, tag = "div", ...props}: Props = $props()
+</script>
+
+<svelte:element this={tag} {...props} class={cx("flex flex-col overflow-hidden pb-6", props.class)}>
+  {@render children?.()}
+</svelte:element>