[Design] Merge request page redesign overview
> [!note] Work in progress
> This is page is serve as documentation to connecting the different pieces of work around the merge request page improvements
Last key update: https://gitlab.com/groups/gitlab-org/-/epics/13632#note_2949595996
## Summary
The redesign focuses on improvements that will reduce cognitive load, speed up decision-making, and make critical actions more accessible.
### Main area of changes:
1. Merge checks to the top of the Overview
- Why:
- What:
- How:
2. Unifying the approval workflow by relocating review and merge action buttons
- Why:
- What:
- How:
3. Comment management via thread panel
- Why:
- What:
- How:
Impact will be measured against adoption and impact on phases of the code review cycle https://gitlab.com/groups/gitlab-org/-/work_items/20403+
## Change 1: Merge checks to the top of the Overview
Moving merge checks to be the first item in the Overview content area, replacing the current description-first layout.
- [insert issue link]
### Why do we need to make the change
#### Addresses the following issues
### What is the change
### How will this change happen?
- Immediate visibility: Users see MR status instantly without scrolling
- Better decision-making: Clear overview of mergeability state informs next actions
- Reduced navigation: No more hunting through variable-length content
Building upon the design proposed in work item #332573+, this approach now addresses one of the blockers around what and how "unblock a merge" with "Set to auto-merge"
## Change 2: Unifying the approval workflow by relocating review and merge action buttons
## Change 3: Comment management via thread panel
issue