Let's provide "most frequently created" sessions option according to the user's pattern

\*Is your feature request related to a problem? Please describe.\*A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]기능 요청이 특정 문제에 연관된 것이라면 여기에 그 문제를 설명해주세요.

\*Describe the solution you'd like\*A clear and concise description of what you want to happen.어떤 기능이 있으면 좋겠는지 자세히 설명해주세요.Every information about session creation attempts(even if it's cancelled or failed) is stored in `kernels` table in DB that `backend.ai-manager` maintains. It could be great to provide a simple panel UI in WebUI and an optional args for CLI operation (e.g.`most-used`) to make the user creates a session in a faster, and simpler way.

\*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.

JIRA Issue: BA-289