refactor(types): rewrite type definitions to account for intrinsic attributes

types/ComposedModal/ModalBody.d.ts

@@ -0,0 +1,23 @@
+/// <reference types="svelte" />
+
+export default class ModalBody {
+  $$prop_def: svelte.JSX.HTMLAttributes<HTMLElementTagNameMap["div"]> & {
+    /**
+     * Set to `true` if the modal contains form elements
+     * @default false
+     */
+    hasForm?: boolean;
+
+    /**
+     * Set to `true` if the modal contains scrolling content
+     * @default false
+     */
+    hasScrollingContent?: boolean;
+  };
+
+  $$slot_def: {
+    default: {};
+  };
+
+  $on(eventname: string, cb: (event: Event) => void): () => void;
+}