Settings: CmdPal settings page is not centered

### Microsoft PowerToys version

main

### Installation method

Dev build in Visual Studio

### Area(s) with issue?

Settings

### Steps to reproduce

### ✔️ Expected Behavior

_No response_

### ❌ Actual Behavior

_No response_

### Additional Information

_No response_

### Other Software

_No response_

Start in the PowerToys Settings area and reproduce the CmdPal settings page using the linked screenshot as the reference. Done means the page is visually centered; the issue names no file, test, or specific reproduction steps, so locating the implementation will require repository exploration.

Written by the indexing model from the issue text.