[BUG] Previous/Next should be hidden when commit details panel is open

[wenfangdu]

Describe the Bug

When checking the commit details, the previous/next buttons cover the buttons beneath them, which is faulty:

Steps To Reproduce

1. Click a commit with a lot of changed files
2. Notice the previous/next buttons position

Expected Behavior

Previous/Next should be hidden when commit details panel is open.

Environment

• OS: macOS 14
• VSCode version: 1.85.2
• Git History version: 0.6.20