feat: integrate PersonalMilestoneModule into GraphQL module and update its configuration

- Added PersonalMilestoneModule to the GraphQL module imports, enhancing the overall functionality and data management.
- Updated PersonalMilestoneModule to use providers and exports for PersonalMilestoneSchema, improving module encapsulation and reusability.

src/Graphql/graphql.module.ts

@@ -46,6 +46,7 @@ import { MeetingRoomModule } from '../MeetingRoom/meetingroom.module'
 import { PubSubModule } from '../PubSub/pubsub.module'
 import { QuizModule } from '../Quiz/quiz.module'
 import { PubSubService } from '../PubSub/pubsub.service'
+import { PersonalMilestoneModule } from 'src/PersonalMilestone/personalmilestone.module'
 
 @Global()
 @Module({
@@ -82,6 +83,7 @@ import { PubSubService } from '../PubSub/pubsub.service'
     DocumentModule,
     AnalyticModule,
     MeetingRoomModule,
+    PersonalMilestoneModule,
     PubSubModule,
     QuizModule,
     PothosModule.forRoot({