Huge refactoring for multiple workflows

src/lib/nodes/ComfyGraphNode.ts

@@ -8,6 +8,8 @@ import type IComfyInputSlot from "$lib/IComfyInputSlot";
 import uiState from "$lib/stores/uiState";
 import { get } from "svelte/store";
 import configState from "$lib/stores/configState";
+import type { WritableLayoutStateStore } from "$lib/stores/layoutStates";
+import layoutStates from "$lib/stores/layoutStates";
 
 export type DefaultWidgetSpec = {
     defaultWidgetNode: new (name?: string) => ComfyWidgetNode,
@@ -100,6 +102,10 @@ export default class ComfyGraphNode extends LGraphNode {
         return null;
     }
 
+    get layoutState(): WritableLayoutStateStore | null {
+        return layoutStates.getLayoutByNode(this);
+    }
+
     constructor(title?: string) {
         super(title)
         this.addProperty("tags", [], "array")