add theatre plugin, add route for theatre editor, build simple animation with a spotlight that follows animating object

src/routes/editor/+page.svelte

@@ -0,0 +1,23 @@
+<script lang="ts">
+	import Editor from '$lib/components/scenes/editor/Editor.svelte';
+</script>
+
+<div>
+	<Editor />
+</div>
+
+<style>
+	:global(body) {
+		margin: 0;
+	}
+
+	div {
+		width: 100vw;
+		height: 100vh;
+		background: rgb(0, 36, 6);
+		background: linear-gradient(180deg, rgba(0, 36, 6, 1) 0%, rgba(0, 0, 0, 1) 100%);
+		display: flex;
+		justify-content: center;
+		align-items: center;
+	}
+</style>