### What changes were proposed in this pull request?
Fix ".../jobs/undefined" link from "Event Timeline" in jobs page. Job page link in "Event Timeline" view is constructed by fetching job page link defined in job list below. when job count exceeds page size of job table, only links of jobs in job table can be fetched from page. Other jobs' link would be 'undefined', and links of them in "Event Timeline" are broken, they are redirected to some wired URL like ".../jobs/undefined". This PR is fixing this wrong link issue. With this PR, job link in "Event Timeline" view would always redirect to correct job page.
### Why are the changes needed?
Wrong link (".../jobs/undefined") in "Event Timeline" of jobs page. for example, the first job in below page is not in table below, as job count(116) exceeds page size(100). When clicking it's item in "Event Timeline", page is redirected to ".../jobs/undefined", which is wrong. Links in "Event Timeline" should always be correct.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Manually tested.
Closes#29757 from zhli1142015/fix-link-event-timeline-view.
Authored-by: Zhen Li <zhli@microsoft.com>
Signed-off-by: Sean Owen <srowen@gmail.com>
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