Re work modal scrolling

src/lib/components/ModalBody.svelte

@@ -0,0 +1,16 @@
+<script lang="ts">
+  import cx from "classnames"
+  import type {Snippet} from "svelte"
+
+  interface Props {
+    class?: string
+    children?: Snippet
+  }
+
+  const {children, ...props}: Props = $props()
+</script>
+
+<div
+  class={cx("scroll-container overflow-y-auto min-h-0 flex flex-col gap-4 p-6 pb-0", props.class)}>
+  {@render children?.()}
+</div>