Fix onboarding status performance issues (#6512)

Updated the onboardingStatus computation to improve performances

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Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-server/src/modules/match-participant/match-participant.service.ts

@@ -157,6 +157,7 @@ export class MatchParticipantService<
 
       this.eventEmitter.emit(`${objectMetadataName}.matched`, {
         workspaceId,
+        name: `${objectMetadataName}.matched`,
         workspaceMemberId: null,
         participants: updatedParticipants,
       });