feat(user, types): add invite and user properties + migration (#6327)

**What**
- Add invite model 
- Populate user model

packages/user/integration-tests/__fixtures__/invite.ts

@@ -0,0 +1,17 @@
+import { SqlEntityManager } from "@mikro-orm/postgresql"
+import { Invite } from "@models"
+import { CreateInviteDTO } from "../../../types/dist"
+
+export const createInvites = async (
+  manager: SqlEntityManager,
+  inviteData: (CreateInviteDTO & { id?: string })[]
+) => {
+  const invites: Invite[] = []
+
+  for (const invite of inviteData) {
+    const inv = manager.create(Invite, invite)
+    invites.push(inv)
+  }
+
+  await manager.persistAndFlush(invites)
+}