perf: optimize Tasker boot and kanban load

plane-src/apps/web/ce/store/root.store.ts

@@ -7,14 +7,21 @@
 // store
 import { CoreRootStore } from "@/store/root.store";
 import type { ITimelineStore } from "./timeline";
-import { TimeLineStore } from "./timeline";
 
 export class RootStore extends CoreRootStore {
-  timelineStore: ITimelineStore;
+  timelineStore: ITimelineStore | undefined;
+  private timelineStorePromise: Promise<ITimelineStore> | undefined;
 
-  constructor() {
-    super();
+  loadTimelineStore = async (): Promise<ITimelineStore> => {
+    if (this.timelineStore) return this.timelineStore;
 
-    this.timelineStore = new TimeLineStore(this);
+    if (!this.timelineStorePromise) {
+      this.timelineStorePromise = import("./timeline").then(({ TimeLineStore }) => {
+        this.timelineStore = new TimeLineStore(this);
+        return this.timelineStore;
+      });
+    }
+
+    return this.timelineStorePromise;
   }
 }