Feature: Move Your Workspaces to another menu

MR: Move Your Workspaces to Code Menu (!178492 - merged)

Description

UI Change conversation thread with context: #450667 (comment 2086921508)

We want to move the Your Workspaces to another menu.

As a GitLab user, I want to see Your Workspaces under the Code Menu so that I have a more consolidate dropdown.

Acceptance Criteria

• Your Workspaces field is moved from Edit menu to Code menu
• Workspaces are still able to be run normally

Technical Requirements

This change should be under the combine_edit_code_dropdowns feature flag.

Design Requirements