refacto(*): remove everything about default workspace (#9157)

## Summary
- [x] Remove defaultWorkspace in user
- [x] Remove all occurrence of defaultWorkspace and defaultWorkspaceId
- [x] Improve activate workspace flow
- [x] Improve security on social login
- [x] Add `ImpersonateGuard`
- [x] Allow to use impersonation with couple `User/Workspace`
- [x] Prevent unexpected reload on activate workspace
- [x] Scope login token with workspaceId 

Fix https://github.com/twentyhq/twenty/issues/9033#event-15714863042

packages/twenty-front/src/modules/workspace/graphql/mutations/activateWorkspace.ts

@@ -3,13 +3,8 @@ import { gql } from '@apollo/client';
 export const ACTIVATE_WORKSPACE = gql`
   mutation ActivateWorkspace($input: ActivateWorkspaceInput!) {
     activateWorkspace(data: $input) {
-      workspace {
-        id
-        subdomain
-      }
-      loginToken {
-        ...AuthTokenFragment
-      }
+      id
+      subdomain
     }
   }
 `;