Update Result screen UI when the First element in the list is getting deleted

[puneet-pdx]

Related to issue: # https://devtopia.esri.com/runtime/kotlin/issues/4844

Description:

The Result screen UI does not update when deleting the First result

Summary of changes:

• We are remembering the selectedTraceRunIndex in the result screen, the value of which does not change when we delete the 0th element cause the UI to not refresh
• Also we were not highlighting the graphic of the next element that becomes the 0th element when the previous element is deleted.

Pre-merge Checklist

• a vTest Job for this PR has been run
  • [x] link: https://runtime-kotlin.esri.com/view/all/job/vtest/job/toolkit/162/
• Unit and/or integration tests have been added to exercise this PR's logic, and the tests are passing:
  • [ ] Yes
  • [ ] No