feat: type for supported data (only primitives)

src/Resumable.astro

@@ -1,7 +1,8 @@
 ---
+type Primitive = string | number | boolean | null | undefined;
 export interface Props {
     id: string;
-    data: Object;
+    data: Record<string, Primitive>;
 }
 const {id, data} = Astro.props;
 ---

src/pages/index.astro

@@ -1,8 +1,9 @@
 ---
 import Resumable from '../Resumable.astro';
 const data = {
-    hello: 'world'
+    name: 'John Doe',
-};
+    isOkay: true,
+}
 export type Data = typeof data;
 ---