Reduce redundant data fetching

[agatha197]

Is your feature request related to a problem? Please describe. We request redundant data fetching in some components such as getting the session list.

Describe the solution you'd like

• Reduce the number of query requests (1 query per 1 second)
• Make the broker file statefully
• Use the xstate

Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered. 혹시 다른 대안들을 생각해본 적이 있다면 함께 적어주세요.

Additional context Add any other context or screenshots about the feature request here. 기능 요청에 대해 보다 잘 이해할 수 있는 다른 맥락을 기술해주세요.