frontend: Rearrange default dock positions

[Warchamp7]

Description

Changes the default arrangement of docks in the main window.

Only affects fresh installs and when resetting the UI. Existing users layouts will remain unchanged.

Indirectly fixes a bug with the Full-Height Docks menu item sometimes becoming desynced from the actual state when resetting docks.

Motivation and Context

Better use of window space and friendlier layout.

How Has This Been Tested?

👁

Types of changes

• Bug fix (non-breaking change which fixes an issue)

• Tweak (non-breaking change to improve existing functionality)

• Code cleanup (non-breaking change which makes code smaller or more readable)

Checklist:

• [x] My code has been run through clang-format.
• [x] I have read the contributing document.
• [x] My code is not on the master branch.
• [x] The code has been tested.
• [x] All commit messages are properly formatted and commits squashed where appropriate.
• [x] I have included updates to all appropriate documentation.