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/auth/graphql/mutations/verify.ts

@@ -3,9 +3,6 @@ import { gql } from '@apollo/client';
 export const VERIFY = gql`
   mutation Verify($loginToken: String!) {
     verify(loginToken: $loginToken) {
-      user {
-        ...UserQueryFragment
-      }
       tokens {
         ...AuthTokensFragment
       }