4689 multi workspace i should be able to accept an invite if im already logged in (#5454)

- split signInUp to separate Invitation from signInUp
- update redirection logic
- add a resolver for userWorkspace
- add a mutation to add a user to a workspace
- authorize /invite/hash while loggedIn
- add a button to join a workspace

### Base functionnality

https://github.com/twentyhq/twenty/assets/29927851/a1075a4e-a2af-4184-aa3e-e163711277a1

### Error handling

https://github.com/twentyhq/twenty/assets/29927851/1bdd78ce-933a-4860-a87a-3f1f7bda389e

packages/twenty-front/src/modules/ui/layout/page/DefaultLayout.tsx

@@ -80,6 +80,7 @@ export const DefaultLayout = () => {
           OnboardingStatus.OngoingWorkspaceActivation,
         ].includes(onboardingStatus)) ||
       isMatchingLocation(AppPath.ResetPassword) ||
+      isMatchingLocation(AppPath.Invite) ||
       (isMatchingLocation(AppPath.PlanRequired) &&
         (OnboardingStatus.CompletedWithoutSubscription ||
           OnboardingStatus.Canceled))