gantt width always be 784, x-axis overlap

[moolean]

Describe the bug
When the Gantt chart is generated, its width is always fixed at 784, which often causes the text on the x-axis to overlap.

npm: v20.16.0
@mermaid-js/[email protected]

cssconfig:
{ "startOnLoad": true, "gantt": { "useWidth": 1000 }, "theme": "forest", "fontFamily": "Noto Sans CJK JP", "darkMode": false }

puppeter-config:
{ "executablePath": "/usr/bin/google-chrome", "args": [ "--no-sandbox", "--start-maximized", "--window-size=2000,2000" ] }

command:
echo "{flowchart}" | mmdc -o {png_file} -i - -p puppeteer-config.json --configFile {css_path} -w 1000

attempts

-s 2 will scale the chart proportionally, but the overlapping issue still occurs.

Expected behavior
Similar to the online live editor, the width should not be fixed.

Screenshots