Fix visual bugs from !95073

What does this MR do and why?

Describe in detail what your merge request does and why.

!95073 (merged) introduced a couple of visual that are resolved here.

1. Delete was wrapped in a button
2. List Item elements were rendered both in

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

	before	after
list item
button

How to set up and validate locally

Delete button:

1. Within a project on the left hand menu bar navigate to Monitor > Incidents
2. Open an incident (create one if needed)
3. Using the tab headings, select Timeline
4. Create a timeline entry if there isnt one
5. On the right hand side of the timeline event observe delete from the more options symbol

to see the list item issue:

1. follow steps 1-3 from previous
2. create multiple entries for the same day

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.