feat: drop calendar repository (#5824)

This PR is replacing and removing all the raw queries and repositories
with the new `TwentyORM` and injection system using
`@InjectWorkspaceRepository`.
Some logic that was contained inside repositories has been moved to the
services.
In this PR we're only replacing repositories for calendar feature.

---------

Co-authored-by: Weiko <corentin@twenty.com>
Co-authored-by: bosiraphael <raphael.bosi@gmail.com>
Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-server/src/engine/core-modules/onboarding/onboarding.service.ts

@@ -56,7 +56,7 @@ export class OnboardingService {
     const isInviteTeamSkipped =
       inviteTeamValue === OnboardingStepValues.SKIPPED;
     const workspaceMemberCount =
-      await this.userWorkspaceService.getWorkspaceMemberCount(workspace.id);
+      await this.userWorkspaceService.getWorkspaceMemberCount();
 
     return (
       !isInviteTeamSkipped &&