Let's show an error message when rescanning the information of images failed for some reason.

\*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.For now, there's no decent way to check whether the registry information is valid or not. If there's any invalid or unauthorized access for a certain project in harbor, the user cannot find a clue for what's wrong and how to fix this.

\*Describe the solution you'd like\*A clear and concise description of what you want to happen.어떤 기능이 있으면 좋겠는지 자세히 설명해주세요.Show error message before rescanning and skip invalid project during rescanning procedure.

\*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.At least we should provide the exact error message, so that the user could find the clue of their former input and fix it.

\*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-290