Update twenty-front commands (#4667)

# This PR

- Moves dev and ci scripts to the `project.json` file in the
twenty-front package
- Adds a project.json file in the root of the project with the main
start command that start both twenty-server and twenty-front
applications concurrently
- Updates the script command of the root project with the start:prod
command (replacing the start command which will be used in dev with the
help of nx)
- Add a start:prod command in the twenty-front app, replacing the start
command (now used for dev purpose)

Issue ref #4645 

@charlesBochet @FelixMalfait please let me know how can I improve it

---------

Co-authored-by: Thaïs Guigon <guigon.thais@gmail.com>

packages/twenty-front/src/modules/activities/emails/utils/__tests__/getDisplayNameFromParticipant.test.ts

@@ -8,6 +8,7 @@ describe('getDisplayNameFromParticipant', () => {
     handle: '',
     role: 'from',
     person: {
+      __typename: 'Person',
       id: '1',
       createdAt: '',
       updatedAt: '',
@@ -32,6 +33,7 @@ describe('getDisplayNameFromParticipant', () => {
       companyId: '',
     },
     workspaceMember: {
+      __typename: 'WorkspaceMember',
       id: '1',
       name: {
         firstName: 'Jane',

packages/twenty-front/src/modules/activities/events/utils/__tests__/groupEventsByMonth.test.ts

@@ -4,7 +4,7 @@ import { groupEventsByMonth } from '../groupEventsByMonth';
 
 describe('groupEventsByMonth', () => {
   it('should group activities by month', () => {
-    const grouped = groupEventsByMonth(mockedEvents as unknown as Event[]);
+    const grouped = groupEventsByMonth(mockedEvents);
 
     expect(grouped).toHaveLength(2);
     expect(grouped[0].items).toHaveLength(1);

packages/twenty-front/src/modules/activities/hooks/__tests__/useCreateActivityInCache.test.tsx

@@ -83,12 +83,10 @@ describe('useCreateActivityInCache', () => {
     act(() => {
       const res = result.current.createActivityInCache({
         type: 'Note',
-        targetableObjects: [
-          {
-            targetObjectNameSingular: 'person',
-            id: '1234',
-          },
-        ],
+        targetObject: {
+          targetObjectNameSingular: 'person',
+          id: '1234',
+        },
       });
 
       expect(res.createdActivityInCache).toHaveProperty('id');