KUAN-HSUN-LI opened a new pull request #572: URL: https://github.com/apache/submarine/pull/572
### What is this PR for? * Refactor the environment list. * Add the preview environment spec button. * Download button for environment spec. ### What type of PR is it? [Refactoring] ### Todos ### What is the Jira issue? https://issues.apache.org/jira/browse/SUBMARINE-802 ### How should this be tested? Test download case is created in e2e test. ### Screenshots (if appropriate)  ### Questions: * Do the license files need updating? No * Are there breaking changes for older versions? No * Does this need new documentation? No -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
