Fix design management display in panels

What does this MR do and why?

Fixes an issue where the design preview was constrained within the panel boundaries instead of taking the full viewport.

Problem

When opening a design from a work item, the design view was contained within the panel layout, limiting the available space for viewing designs.

Solution

Added CSS to break the design view out of panel constraints, allowing it to use the full viewport for better design preview experience.

Screenshots or screen recordings

Before After
CleanShot 2025-09-16 at 19.28.50.mp4 CleanShot 2025-09-16 at 19.10.28.mp4

How to set up and validate locally

  1. Navigate to a project with work items
  2. Open a work item that has designs attached
  3. Click on a design to open the design preview
  4. Verify the design view takes up the full viewport

Merge request reports

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