getImages: svg_outline_text=false is removed from query parameters

[la-melli-stoeger]

Tested Library Version: 2.1.2-beta & 1.11.0
Node / TypeScript Version: Node v22.19.0 / TypeScript 5.9.2

Description:
When using getImages and passing the query parameter svg_outline_text: false, the parameter is removed by the internal toQueryParams function in index.js and is not sent to the Figma API endpoint.

This happens in the function:

function toQueryParams(x) {
  if (!x) return "";
  return Object.entries(x)
    .map(([k, v]) => k && v && `${k}=${encodeURIComponent(v)}`)
    .filter(Boolean)
    .join("&");
}

Thank you for your work on this library!