Describe the bug
In my terminal, Kitty, I've customized the font size. In the GitUI window, when the commands do not fully display on one line, and I press . to show more commands, the background color of these additional commands does not match the cmdbar_bg color configured in ~/.config/gitui/theme.ron.
录屏 2024-08-30 11-59-18.webm

To Reproduce
Steps to reproduce the behavior:

1. adjust the terminal font size to ensure that the command cannot be displayed in one line
2. vim ~/.config/gitui/theme.ron

(
    cmdbar_bg: Some("#FFFFFF"),
)

3. execute gitui command then express . to show more command
   4 . See the difference two command line

Expected behavior
The background color of the two lines of commands is the color configured by cmdbar_bg in ~/.config/gitui/theme.ron.

Screenshots

Context (please complete the following information):

• OS/Distro + Version: [CachyOS Linux x86_64 Linux 6.6.47-1-lts]
• GitUI Version [ gitui nightly 2024-06-02 (95e1d4d)]
• Rust version: [rustc 1.80.1 (3f5fd8dd4 2024-08-06)]