feat(components): Initialize component state and enable property mapping

- Ensure every component has an initialized state, defaulting to empty.
- Implement property mapping to synchronize states between parent and child components.

src/lib/components/HelloEarth/HelloEarth.svelte

@@ -1 +1,10 @@
-<div class="p-12 bg-blue-400">Hello Earth</div>
+<script>
+	export let id;
+
+	import { getComponentStore } from '$lib/stores/componentStores.ts';
+
+	const store = getComponentStore(id);
+	$: console.log('store:', $store);
+</script>
+
+<div class="p-12 bg-blue-400">Hello Earth {JSON.stringify($store)}</div>