[Fix][UI] Optimize detail and finish-jobs components

[hawk9821]

Purpose of this pull request

1. Introduced the onUnmounted hook in the task details page to ensure that all timers are cleared when the component is uninstalled, avoiding memory leaks.
2. Added a Finish Time column to the list of completed tasks to make it easier for users to view the task end time.
3. Adjusts the sorting method of completed tasks. Sorts the returned results of the completed tasks API in reverse order of completion time, so that the most recently completed tasks are displayed at the top.

• On the job details page, for tasks in the completed state, a request is sent every 5 seconds, and a timer should not be added here.

• The timer is not cleaned up after exiting the details page.

• The last completed job is placed at the bottom

• After modification

Does this PR introduce any user-facing change?

How was this patch tested?

Check list

• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
• If you are contributing the connector code, please check that the following files are updated:
  1. Update plugin-mapping.properties and add new connector information in it
  2. Update the pom file of seatunnel-dist
  3. Add ci label in label-scope-conf
  4. Add e2e testcase in seatunnel-e2e
  5. Update connector plugin_config

[Hisoka-X]

Hi @hawk9821 . Could you add some show case?