_getAssetByExtension(ext) {
    let assetUrl = '';
    if (!ext) return assetUrl;

    this.releases[0]['assets'].forEach((asset) => {
      if (asset['name'].endsWith(`.${ext}`)) {
        assetUrl = asset['browser_download_url'];
      }
    });

    return assetUrl;
  }
Returns URL to release asset by file extension

@param {string} ext
File extension without leading dot