refacto(invite|signin): remove unused code + fix signin on invite page. (#9745)

- Replace `window.location.replace` by `useRedirect` hook.
- Remove unused code: `switchWorkspace, addUserByInviteHash...`
- Refacto `Invite` component.
- Fix signin on invite modal.

packages/twenty-front/src/modules/workspace/graphql/queries/getWorkspaceFromInviteHash.ts

@@ -7,6 +7,7 @@ export const GET_WORKSPACE_FROM_INVITE_HASH = gql`
       displayName
       logo
       allowImpersonation
+      subdomain
     }
   }
 `;