Improved activity editor re-renders (#4149)

* Refactor task count

* Fixed show page rerender

* Less rerenders and way better title and body UX

* Finished breaking down activity editor subscriptions

* Removed console.log

* Last console.log

* Fixed bugs and cleaned

packages/twenty-front/src/modules/activities/timeline/states/timelineActivitiesFamilyState.ts

@@ -0,0 +1,11 @@
+import { atomFamily } from 'recoil';
+
+import { Activity } from '@/activities/types/Activity';
+
+export const timelineActivitiesFammilyState = atomFamily<
+  Activity | null,
+  string
+>({
+  key: 'timelineActivitiesFammilyState',
+  default: null,
+});